One of our Forum members, Jason Peterson, pulled off a remarkable accomplishment at an NBRSA 600-yard match last fall. Last October, at the Rogue Valley SSA range in Oregon, Jason set no less than FOUR new NBSRA Score Records: Light Gun 6-Target Score (30 shots), Heavy Gun 6-Target Score (60 shots), Two-Gun 6-Target Score (45 shots), and Two-Gun 12-Target Score (90 shots).
Jason was shooting a 6 BRA (6mmBR Ackley) Light Gun with Borden BRM action, LBR stock, and 1:8″-twist Krieger barrel. Bedding was done by Alex Wheeler. Notably, Jason’s father chambered the Krieger barrel — Thanks Dad! The load consisted of 108gr Bergers pushed by Hodgdon H4895. Writing in the NBRSA Magazine, Bill Johnston observed: “If my memory serve me right, this is the first time in Long Range History that 4 records were set at one match by the same shooter.”
This rifle started life as a factory Remington VSSF in .204 Ruger. With new stock, new barrel, and other upgrades it is now an ultra-accurate .223 Rem competition rifle.
Flames in the Snow…
Forum Member Brandon Schlund (aka “Bois Blanc Boy”), photographed this handsome flame-themed F-TR rifle against the snowy background of Michigan’s Bois Blanc Island. Brandon posted this to our long-running Pride and Joy Rifle Forum thread. He notes: “This is my first F-TR build, which started out as a stock Remington .204 Ruger. I had the action blue-printed, firing pin was bushed by Speedy, and I had a new bolt handle and knob installed by John Pierce.” This rifle is now fitted with a 3-groove Pac-Nor 1:6.5″-twist barrel chambered in .223 Remington to shoot the 90gr Bergers. Other components are: Kelbly KTS stock, Phoenix bipod, and Sightron 8-32x56mm SIII scope. Brandon says: “It took a long time to get this gun where it is now but I’m truly happy with it!” Here’s the “before” photo:
The Transformation — F-TR Comp Rig Made from Rem .204 Ruger Varminter
This rifle started out as a “plain Jane”, factory Remington VSSF II. I shot it on varmint hunts in factory configuration. Then I decided to transform the rifle into a .223 Rem F-TR gun. As the .204 has the same bolt face as a .223 made sense to go in that direction since I would be able to use the gun for varmint hunting as well as F-TR.
While I had shot some F-Class matches with my dad (Joe Schlund aka Bench on AccurateShooter) it wasnt much. When we did a PD hunt in Wyoming I primarily shot my .204 but I decided I wanted a cartridge that could reach out a little further and also do double duty — competition and varminting.
The first step in transforming this rifle was selecting a barrel. We ordered a Pac-Nor, 1:6.5″-twist, 3 groove, 30.5″ heavy Palma contour. This was then chambered with a PTG .223 ISSF reamer with 0.169″ freebore to run the .224 caliber heavies. I went with Pac-Nor because both my father and my brother Mark (aka Labrador2 on AccurateShooter) owned Kelbly-built F-TR rifles with the same barrels. Mark and my father couldn’t be happier with the results. Pac-Nor has great customer service along with a short wait time.
I sent the barrel and the factory Remington 700 action down to Kelbly’s where they did the chambering and cut the threads. While Kelbly’s had my action I had them blueprint it. A Kelbly KTS stock with the three-way buttplate and adjustable cheek piece came next. After getting behind Dad’s rifle and Mark’s gun there was no reason to look any further. With all its adjustments, the KTS stock fits very comfortably.
Loading for the .223 Rem with H4895 and 90gr Bergers
As a .223 Rem, this rifle has proven very accurate — it’s a bullet-hole cutter at 100 yards (low twos easy). Our best load is with Hodgdon H4895, 90gr Berger VLDs, CCI BR4 primers. This load is running at about 2835 FPS but YMMV (remember this is a LONG 30.5″ barrel). The Bergers are loaded .008″ into the lands with base-to-ogive of 2.035″.
Our loading technique may be tedious — with lots of sorting and measuring. But brother Mark, father Joe, and I all enjoy the steps. Our three .223 Rem match guns all love the same load which makes loading much easier. Believe it or not we use a Hornady Lock-N-Load progressive ammo plant, which is great when loading for three guns. Our consistency is fantastic with run-out a mere .001-.0015.
We also turn necks and weigh our primers. Does neck-turning and primer weighing really make a difference? Who knows but we try to eliminate more variables since we have to the time to do it, and we actually enjoy the procedures.
Pierce Engineering Installed Action and Modified Bolt
Being from Michigan, Pierce Engineering has done a lot of work for my family’s guns. For this project the Pierce team bedded the action and glued in a single-shot follower. The stock bolt handle/knob was too short for comfort in the KTS stock. Pierce added a longer handle and tactical knob to the bolt. I then installed a .223 Rem Lapua case base into the knob.
The complete .223 Rem rifle ready to shoot F-TR, as fitted with 8-32X56mm Sightron and Phoenix Bipod, weighs 17 pounds, 15 ounces.
Flame Graphics by Camo Creek Hydrographics
After the action was bedded by Pierce, the stock was sent to Camo Creek Hydrographics in Fenton, Michigan. I selected a flame-style design which Camo Creek applied through hydro-dipping. The stock went back to Pierce’s shop, which applied three coats of clear over the entire stock. The clear-coating really enhanced the flame graphics.
Firing Pin Bushed by Speedy
I sent the bolt to Thomas “Speedy” Gonzalez to have the firing pin hole bushed as otherwise the load could crater the primers pretty bad. Knowing I’d be shooting heavy-weight .22-Cal bullets with a stout load this was a good idea. Speedy also cut his trademark grooves into the bolt shroud which looks amazing. His work is top notch! There is zero cratering now, even with the hottest of loads.
Competition Components — 8-32x56mm Sightron and Phoenix Bipod
For an F-TR rig you need a quality high-magnification optic and a premium, wide-base bipod. I installed a 8-32x56mm SIII Sightron. This was another easy choice because of the attractive price and because my family has four other Sightrons that work great.
I installed a fore-end Picatinny rail to attach a Phoenix Bipod. I extended the Mariners wheel handles by adding short sections from an aluminum arrow shaft. This lets me adjust elevation without stretching forward. I also installed a Calvin Elite Timney Trigger set at 6 ounces.
How much did this all cost? Brandon tells us “I have roughly $2500 into the rebuild of the gun from a .204 Ruger to the .223 Rem.”
Bois Blanc Island in Michigan
Here on Bois Blanc Island we don’t have many amenities, but we do have the ability to shoot 550 yards at our local gravel pit on state land. It’s snow-bound right now as you can see. But later in the year this will be our close-to-home training center.
Winter at Bois Blanc Island, Michigan — Here’s the gravel pit where we can load test during warmer weather. When I took this photo, it was a “balmy” 10-degree day.
Look carefully at the photo above. That stylish black rear bag doesn’t look anything like an Edgewood or Protektor — it’s a Lenzi bag from Italy. The front Bag-holder on the SEB Neo Rest is also a Lenzi product.
Lenzi Rear Sand Bag
Pat Reagin of PMA Tool offers a really superb rear bag that comes from Italy. Pat tells us: “We are now carrying rear bags made by Italian benchrester Alberto Lenzi. Made in Italy, these Lenzi bags are AWESOME! They are available for short range and one that is slightly taller for long range.” The Lenzi rear bags feature a big, 8″x6″ footprint with a thick, slightly concave base that sits very flat on the bench top. Lenzi bags are very stable with a reassuring “dead” feel on the bench. Guys who have tried this bag really like it. Pat says: “I can’t explain it, but the bag seems to absorb energy/recoil better than other bags — the gun tracks a little better and I get back on target really well.” CLICK HERE for more information: Lenzi Long Range Rear Bag | Lenzi Standard Rear Bag.
– Black leather with Cordura at stock contact points with blue stitching.
– 1/2″ flat between medium ears.
– Heavy 8″x6″ base with built-in “donut”.
– Weight about 15.5 lbs filled with heavy sand in bottom & white sand in ears.
– Bags offered with Nylon Ear Covering OR 3M Slick Ear Fabric.
Lenzi Replacement Top for SEB NEO Front Rest
A common complaint about the SEB NEO rest is the rest top, specifically the three-piece bag. This rest top made by Alberto Lenzi addresses the issue by replacing the entire rest top. The rest top features a more conventional design and includes a traditional style front bag that conforms to IBS and NBRSA rules.
If your local shooting club wants to attract new members, and provide a new form of competition, consider starting a series of groundhog (varmint) matches. These can employ paper targets, metal silhouette-style targets, or both. Groundhog matches are fun events with straight-forward rules and simple scoring. You don’t need to bring windflags or load at the range, so a Groundhog match is more “laid back” than a registered Benchrest match. Normally there will be three or four rifle classes, so you can compete with a “box-stock” factory gun, or a fancy custom, as you prefer. Many clubs limit the caliber or cartridge size allowed in varmint matches, but that’s just to protect reactive targets and keep ammo costs down. In this article, Gene F. (aka “TenRing” in our Forum), provides a basic intro to Groundhog matches, East-Coast style.
Groundhog Matches Are Growing in Popularity
Though Groundhog matches are very popular in many parts of the country, particularly on the east coast, I’ve found that many otherwise knowledgeable “gun guys” don’t know much about this form of competition. A while back, I ordered custom bullets from a small Midwest bullet-maker. He asked what type of competition the bullets would be used for, and I told him “groundhog shoots”. He had not heard of these. It occurs to me that perhaps many others are unfamiliar with this discipline.
Groundhog matches have grown rapidly in popularity. There are numerous clubs hosting them in Pennsylvania, Maryland, and Delaware, as well as other venues. They are usually open to the public. Most Eastern clubs have five to twenty cement benches, and overhead roofs. At this time, there is no central source for match schedules. If you’re interested in going to a groundhog match, post a query in the AccurateShooter Forum Competition Section, and you should get some info on nearby opportunities.
How Matches Are Run — Course of Fire and Scoring
Unlike NRA High Power Matches, there is no nationwide set of standard rules for Groundhog matches. Each club has their own rules, but the basics are pretty similar from club to club. Paper groundhog targets are set at multiple distances. There are normally three yardages in the match. Some clubs place targets at 100, 200, and 300 yards. Other clubs set them at 200, 300, or 400 yards. At my club in Shippensburg, PA, our targets are placed at 200, 300 and 500 meters.
The goal is to score the highest total. The paper targets have concentric scoring rings. The smallest ring is normally worth ten points while the large ring is worth five points. The course of fire varies among the various clubs. Most clubs allow unlimited sighters and five shots on the record target in a given time period. Only those five shots on the scoring rings are counted, so that with three yardages, a perfect score would be 150 points. Tie breakers may be determined by total number of dead center or “X” strikes; or, by smallest group at the farthest distance.
Types of Rifles Used at Groundhog Matches
The same benchrest rigs found at IBS and NBRSA matches can be utilized (though these will typically be put in a ‘custom’ class). Though equipment classes vary from club to club, it is common to separate the hardware into four or five classes. Typical firearm classes can include: factory rifle; deer hunter; light varmint custom (usually a limit of 17 lbs.with scope); and heavy varmint custom (weight unlimited). Some clubs allow barrel tuners, others do not. Scope selection is usually unlimited; however, some restrict hunter class rifle scopes to 20 power. Factory rifles usually cannot be altered in any way.
Good, Simple Fun Shooting — Why Groundhog Shoots Are Popular
Forum member Danny Reever explains the appeal of groundhog matches: “We don’t have a governing organization, or have to pay $50 a year membership just to compete in matches. Sure the rules vary from club to club, but you adapt. If you don’t like one club’s rules, you just don’t shoot there. It’s no big deal.
There are no National records, or Hall of Fame points — just individual range records. If you want to shoot in BIG matches (with big prizes), there is the Hickory Ground Hog Shoot among others. If competition isn’t your bag, many clubs offer mid-week fun matches that you can shoot just for fun. You shoot the same targets but with a more relaxed atmosphere with no time limits.
The best part is you don’t have to shoot perfect at every yardage. You always have a chance because in this sport it really isn’t over until the last shot is fired. Typically ALL the entry money goes to the host club, with much of the cash returned back to the shooters via prizes. Junior shooters often shoot for free, or at a reduced rate. The low entry cost also encourages young guys to get involved who don’t have $4000 custom rifles or the money to buy them.
There isn’t a sea of wind flags to shoot over or to put up and take down. If the range has a couple of flags so much the better, but after all it is a varmint match. No pits to spot shots and slow things down either. If you can’t see your hits through your rifle scope or spotting scope well you are in the same boat as everybody else. That’s what makes it interesting/ sometimes frustrating!
M1 Garand Springfield Armory July 1941 production. Facebook photo by Shinnosuke Tanaka.
Want an authentic surplus M1 Garand? You can get these classic battle rifles from the Civilian Marksmaship Program (CMP) through direct sales as well as auctions. If you are looking to obtain an authentic, safe-to-shoot M1 Garand, the CMP is your best bet. Each M1 Garand rifle sold by the CMP is an genuine U.S. Government rifle that has been inspected, head-spaced, repaired if necessary, and test fired for function. Each rifle is shipped with safety manual, one 8-round clip, and chamber safety flag. CMP operations, warehousing, inspection & repair, test firing, sales order processing and distribution activities are headquartered in Anniston, Alabama.
M1 Garand Manufacturer Codes: SA (Springfield Armory), HRA (Harrington & Richardson Arms), IHC (International Harvester Co.), WRA (Winchester Repeating Arms)
The federal law that established the new CMP authorizes the Corporation to sell surplus .30 and .22 caliber military rifles, parts and ammunition to qualified U.S. citizens “for marksmanship”. Accordingly, the CMP sells government-surplus M1 Garands, .22 caliber target rifles, and small quantities of other rifles to qualified purchasers.
M1 Garands at CMP Retail Store in Anniston, Alabama.
How to Order an M1 Garand from the CMP
To purchase an M1 Garand through the CMP, you must be an adult U.S. Citizen, who is a member of an affiliated organization, and who has participated in a “Marksmanship Activity”*. This basically meas you need to join a a gun club and participate in a clinic or match. Proof of club membership and citizenship is mandatory for all ages. However, the marksmanship requirement is waived for those over 60 years. Garands must be ordered by mail or through official CMP Auctions. Orders are filled on a first-come, first-serve basis. Rifles of all grades are packed for shipment purely by “luck of the draw”. Most orders ship within 2-4 weeks. If price has changed after an order has been received, customers will be notified before new prices are charged. Free Shipping except Puerto Rico and P.O. Boxes. CLICK HERE for ordering information.
Most bolt-action rifle shooters work the bolt with their trigger-pulling hand. This is because most rifles sold to right-handed shooters come with right-side bolts, while “lefty” rifles come with left-side bolts. This “standard” configuration requires the shooter to take his dominant, trigger-pulling hand off the stock to cycle the bolt, then re-position his hand on the stock, and “re-claim” the trigger. Often the shooter must lift or move his head to work the bolt, and that also requires him to re-establish his cheek weld after each and every shot. Not good.
This really doesn’t make much sense for precision shooting with fore-end support*. There is a better way. If you leave your trigger hand in position and work the bolt (and feed rounds) with the opposite hand, then you don’t need to shift grip and head position with each shot. All this requires is a weakside-placed bolt, i.e. a left bolt for a right-handed shooter or a right bolt for a left-handed shooter. The video below shows a “Lefty” working a right bolt. Note how efficient this is:
As our friend Boyd Allen explains: “If you think about it, if you are going to work with a factory action where your options are left bolt and left port or right bolt and right port, and you are building a rifle that will only be shot from a rest, using the left/left for a RH shooter or using a right/right for a LH shooter works better than the conventional configuration”.
Shoot Like a Champ and Work the Bolt with Your Weakside Hand
Derek Rodgers, the current F-TR World Champion, the reigning King of 2 Miles, and the only person to have won BOTH F-Open and F-TR U.S. National Championships, runs this kind of “opposite” bolt set-up. Yep, Derek shoots right-handed with a left bolt. Though Derek is a right-hander, he shoots with a Left Bolt/Left Port (LBLP) action. He pulls the trigger with his right index finger, while working the left-side bolt with his left (weakside) hand. This allows him to stay in position, and maintain his cheekweld. He places his right hand on the grip, while manipulating the bolt (and feeding rounds) with his non-trigger-pulling hand.
Current King of 2 Miles (and F-TR World Champion) Derek Rodgers
This is the rifle with which Derek won the 2013 F-TR National Championship.
*For true standing, off-hand shooting (whether in competition or on a hunt), a conventional strongside bolt placement makes sense, since the non-dominant arm must support the front of the rifle all the time. When shooting from bipod or rest, it’s a different story.
Registration is now open for the Civilian Marksmanship Program (CMP) 2019 Travel Games – a variety of rifle and pistol events held around the country throughout the year. The CMP’s Cup Matches, formerly known as the Creedmoor Cup Matches, will now be a fixture at Travel Games events. Cup Matches include a 4-Man Team Match, an EIC Rifle Match, and three days of 80-Shot events.
2019 Travel Games Schedule:
26 April-5 May – Eastern CMP Cup & Games, Camp Butner, NC
7-9 June – Talladega D-Day Matches, Talladega, AL
16-22 September – New England CMP Cup & Games, Jericho, VT
7-13 October – Oklahoma CMP Cup & Games, Oklahoma City, OK
19-24 November – Talladega 600, Talladega, AL
IMPORTANT: The CMP Travel Games 2019 schedule includes major changes! The Western CMP Travel Games event, usually held in Phoenix in October, will NOT be held 2019. However, the Western Games WILL resume in March 2020. For 2019, the Oklahoma CMP Games event will move from its typical April time-frame to October. Additionally, the Talladega 600 Match has been moved up from December to November.
Oklahoma CMP Cup & CMP Games Matches – The Oklahoma Games were moved from April to October in place of the Western CMP Games & CMP Cup Matches, which will return March 13-22, 2020.
Eastern CMP Cup & CMP Games Matches – The Eastern Games will revert back to a schedule used in the past, with CMP Games matches fired first, followed by Cup Matches to conclude the event.
Take Note: There are NO Western Travel Games in 2019 — Western Games Come Back in 2020.
Competition and Small Arms Firing Schools
Events fired at the Travel Games include a mix of modern and vintage military rifle competitions like the John C. Garand, Springfield, Rimfire Sporter, Carbine and Vintage Sniper Matches. The Travel Games also feature a growing field of pistol opportunities, as well as a Small Arms Firing School for new and experienced marksmen. Other informative clinics are conducted throughout the Games Matches by qualified CMP staff members.
Travel Games Will Employ Electronic Targets
E-Targets Means NO PIT DUTY
Rifle competitions will be fired on CMP Targets, a modern electronic target system that instantaneously produces shot placement and eliminates the need for pit duty. This allows quicker matches, with faster relays, and less wasted time. There is also less physical strain for older competitors.
For more information on the CMP Travel Games and/or to register, visit: CMP Travel Games Page.
PRS and NRL fans — and really anyone interested in “move and shoot” type competitions — should definitely watch this video. It’s excellent. No hype folks — this Editor has watched dozens of PRS/tactical videos and this is one of the best filmed and edited. You get a real feel for the competition — the challenges, the gun-handling, the hardware, and, of course, the camaraderie.
GREAT VIDEO — WATCH PRS Finale Down Under in Australia:
NOTE: Click Speaker Icon to play audio.
This video covers the 2018 Vortex Season Finale in Buchan, Victoria, Australia. This was the culmination of the Australia Precision Rifle Series (AUS PRS). To say it looks like fun is an understatement. We wish we could have participated.
More Aussie PRS Matches in 2019 Starting This Month
There are more Aussie Matches in 2019, starting with a Victoria match at the end of this month, on March 29-31, 2019. So far, FIVE matches are locked in for the 2019 season, with another TWO being planned:
March 29th – 31st | SSAA Mildura, VIC
May 10th – 12th | Pracitcal Shooting SA (Monarto, SA)
Shooting USA will broadcast a great episode today, February 27, 2019. There are three segments worth watching. First the TV show spotlights the popular GAP Grind, a Pro-Am PRS event at the K&M Precision complex in Tennessee. Then this episode covers Hornady’s Zombies in the Heartland multi-gun match. This popular event, hosted in Nebraska every year, is one of the biggest three-gun shoots in the nation. Finally there is a historical feature on the 7-barrel Nock Volley gun from the late 1700s.
SHOW TIMES: This Shooting USA Episode airs February 27, 2019 (Wednesday) at 9:00 PM Eastern and Pacific; 8:00 PM Central.
PART ONE: GAP Grind Feature on Shooting USA
Lots of Action, with 20+ Stages
The GAP Grind is a notoriously challenging, “high tempo” match with minimal down-time between stages. Over the course of 20+ stages, competitors will fire 200+ shots at a variety of steel, paper, moving, and reactive targets out to 1,200 yards. Targets vary in size/difficulty based on the shooter’s position, distance, and time allotted. Most stages include “stressors” — i.e. time limits or required movement(s).
The GAP Grind is held at the impressive K&M Shooting Complex:
Lots of Action, with 20+ Stages
The GAP Grind is a notoriously challenging, “high tempo” match with minimal down-time between stages. Over the course of 20+ stages, competitors will fire 200+ shots at a variety of steel, paper, moving, and reactive targets out to 1,200 yards. Targets vary in size/difficulty based on the shooter’s position, distance, and time allotted. Most stages include “stressors” — i.e. time limits or required movement(s).
Josh Temnnen Facebook photo.
GAP Grind Hardware
You’ll find the latest and greatest PRS hardware at the GAP grind. Notable this year was the fact that many top competitors “stepped down” from the 6.5/6mm Creedmoor to the smaller, more efficient 6mm Dasher (and other 6BR Improved) cartridges. The Dasher offers excellent accuracy with less recoil than the 6.5 Creedmoor. Also, many top shooters are now running Kahles optics. Photo by Shelley Giddings.
PART TWO: Zombies in the Heartland
Pandemic: Zombies in the Heartland
Every year Hornady hosts the very popular Zombies in the Heartland event. This “Pandemic” 3-Gun fun match, one of the biggest three-gun shoots in the nation, was hosted by Hornady this past summer, June 1-3, 2018 at the Heartland Public Shooting Park in Grand Island, Nebraska. The Pandemic featured a rich prize table worth over $150,000. Prizes include pistols, rifles, shotguns, scopes, AR uppers, gun parts, and gear of all kinds.
The Pandemic is a veritable theme park for shootists, with many fun stages and innovative targets. Many unique, reactive zombie targets have been developed specifically for this match. The use of paper targets has been minimized — so it’s mostly “bang and clang”.
There were ten multi-gun stages this past year. Rifles, pistols and shotguns are used on most stages. There were also fun side-matches. We highly recommend you watch the video below to see highlights from a past Pandemic.
2017 Zombies in the Heartland Highlights Video. Guys, this well-made video is WORTH WATCHING! This video offers Shooter’s POV views of many stages including full auto:
The MasterPiece Arms BA Chassis is a leading product choice according to a recent Precision Rifle Blog (PRB) survey of Precision Rifle Series (PRS) and National Rifle League (NRL) competitors. Second were Manners Stocks, and third were Foundation-brand systems. PRB Editor Cal Zant surveyed 150 PRS and NRL precision rifle shooters to determine what gear they run in long range rifle competitions. The MPA BA Competition Chassis ranked #1 with 27% of the PRS and NRL shooters surveyed running this particular modular chassis system. READ Full PRB Stocks and Chassis Survey.
MPA BA Competition Chassis
MPA has several configurations of its highly successful BA Chassis System, with the MPA BA Competition Chassis named the Official Chassis of the 2019 PRS. This competition version includes all the standard features of the original, but includes special enhancements for long range tactical rifle competitions, such as the PRS and related events. There are additional hole locations on the fore-end for locating the rotating barricade stop, which locks the rifle in place when shooting on a variety of barricade designed stages. The spigot mount attaches to the front of the fore-end, giving the shooter additional space to mount their bipod. A bag rider attachment provides better rear bag recoil management (an Enhanced Bag Rider is available for an additional fee).
MPA president Phil Cashin is an active PRS shooter who finished in the top 100 in 2017 and qualified for the finale last year. Cashin, shown in the video below, regularly tests out new ideas and upgrades in actual competition and seeks out feedback from top tactical competitors. “It’s a great honor [for MPA] to be named the most popular brand of chassis/stock systems amongst the top PRS and NRL competitors[.] We look forward to developing even more products with the long-range precision shooter in mind,” said Cashin.
MPA Production Class Rifle
MPA also offers a PRS Production Class Rifle (PCR) using the MPA Chassis system mated to a Savage Model 12 action. Production Class rifles may cost no more than $2000.00 before optics. Designed specifically for the new PRS Production Class, MPA’s PCR Competition Rifle offers many premium features yet stays under the $2,000 Class limit. The Savage action is upgraded with a Rifle Basix 2-lb trigger, and the adjustable, modular chassis offers a bag rider, barricade stop, and built-in bubble level.