AR-platform rifles are fun and versatile, but the standard, mil-spec triggers leave much to be desired. They tend to be gritty, with creep and heavy pull weight. One of the easiest, most effective AR upgrades is a trigger group swap. An improved fire control group makes a huge difference. There are many aftermarket trigger options for the AR platform rifles. Choose single-stage or two-stage, either standard trigger assembly or unitized “drop-in” trigger, such as those made by Timney or Triggertech.
When upgraded with a precision trigger and match barrel, AR-platform rigs work great in NRA High Power competitions (Photo from NRA Blog, at Camp Perry).
Two-Stage vs. Single-Stage Triggers
Two-stage triggers have two separate movements. The first stage offers a light, spring-loaded pressure that works against the shooter’s pull until stopping at the second stage – this is called “take-up”. If there is no spring pressure, it is known as “slack”. Should the shooter continue to pull the trigger once he’s arrived at the second stage, the mechanism will operate like a single-stage trigger from there until engaging the sear and firing the gun. Some shooters prefer a two-stage trigger because it allows a mental preparation (first stage) before the final decision to “break the shot”.
Single-stage triggers feature no take-up or slack, as they begin engaging the sear as soon as the shooter begins pulling the trigger. Some competitive shooters prefer the two-stage trigger because of the feedback it provides during its first stage, while other shooters, including those using their rifle in tactical scenarios, may want the surety of a single-stage trigger, ready to engage and fire once their finger is inside the trigger guard. Regardless of preference, a good trigger will feature minimal creep and should be free of grittiness, providing a smooth, even break.
Drop-In Trigger Assembly vs. Standard Trigger Group
Once you decide between a single-stage or two-stage trigger, you can choose between standard and drop-in trigger groups. Standard trigger groups feature all the fire control group parts separated, and need to be pieced together and installed much like a mil-spec trigger, while drop-in trigger are pre-assembled and contained within a casing that simply drops in to the receiver and accepts the pins, hence the name.
After-Market Trigger Comparison
Some shooters prefer drop-in triggers due to the ease of installation, while others opt for standard groups so they can access the components individually for cleaning adjustment or replacement. If one piece of a drop-in trigger fails, you’ll need to either replace the entire unit or send it to the manufacturer for repair, whereas you may be able to simply replace the broken component of a standard trigger without needing a whole new trigger set.
Trigger Terminology — “Creep”, “Stacking”, “Overtravel”
“Creep” or “travel” is the distance the trigger moves between the end of take-up and when the trigger breaks to fire the fun. Too much creep can affect accuracy, but no creep can be unsafe, as the shooter may not be prepared to fire. “Stacking” occurs when the trigger weight actually increases during travel — this shouldn’t happen. Lastly, “overtravel” is the distance the trigger continues moving back after the gun fires.
This article is based on a longer story in the NRA Blog.
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AR-platform rifles are fun and versatile, but the standard, mil-spec triggers leave much to be desired. They tend to be gritty, with creep and heavy pull weight. One of the easiest, most effective AR upgrades is a trigger group swap. An improved fire control group makes a huge difference. There are many aftermarket trigger options for the AR platform rifles. Choose single-stage or two-stage, either standard trigger assembly or unitized “drop-in” trigger, such as those made by Timney or Triggertech.
When upgraded with a precision trigger and match barrel, AR-platform rigs work great in NRA High Power competitions (Photo from NRA Blog, at Camp Perry).
Two-Stage vs. Single-Stage Triggers
Two-stage triggers have two separate movements. The first stage offers a light, spring-loaded pressure that works against the shooter’s pull until stopping at the second stage – this is called “take-up”. If there is no spring pressure, it is known as “slack”. Should the shooter continue to pull the trigger once he’s arrived at the second stage, the mechanism will operate like a single-stage trigger from there until engaging the sear and firing the gun. Some shooters prefer a two-stage trigger because it allows a mental preparation (first stage) before the final decision to “break the shot”.
Single-stage triggers feature no take-up or slack, as they begin engaging the sear as soon as the shooter begins pulling the trigger. Some competitive shooters prefer the two-stage trigger because of the feedback it provides during its first stage, while other shooters, including those using their rifle in tactical scenarios, may want the surety of a single-stage trigger, ready to engage and fire once their finger is inside the trigger guard. Regardless of preference, a good trigger will feature minimal creep and should be free of grittiness, providing a smooth, even break.
Drop-In Trigger Assembly vs. Standard Trigger Group
Once you decide between a single-stage or two-stage trigger, you can choose between standard and drop-in trigger groups. Standard trigger groups feature all the fire control group parts separated, and need to be pieced together and installed much like a mil-spec trigger, while drop-in trigger are pre-assembled and contained within a casing that simply drops in to the receiver and accepts the pins, hence the name.
After-Market Trigger Comparison
Some shooters prefer drop-in triggers due to the ease of installation, while others opt for standard groups so they can access the components individually for cleaning adjustment or replacement. If one piece of a drop-in trigger fails, you’ll need to either replace the entire unit or send it to the manufacturer for repair, whereas you may be able to simply replace the broken component of a standard trigger without needing a whole new trigger set.
Trigger Terminology — “Creep”, “Stacking”, “Overtravel”
“Creep” or “travel” is the distance the trigger moves between the end of take-up and when the trigger breaks to fire the fun. Too much creep can affect accuracy, but no creep can be unsafe, as the shooter may not be prepared to fire. “Stacking” occurs when the trigger weight actually increases during travel — this shouldn’t happen. Lastly, “overtravel” is the distance the trigger continues moving back after the gun fires.
This article is based on a longer story in the NRA Blog.
Share the post "Triggers for AR Platform Rifles — Single-Stage and Two-Stage"
AR-platform rifles are fun and versatile, but the standard, mil-spec triggers leave much to be desired. They tend to be gritty, with creep and heavy pull weight. One of the easiest, most effective AR upgrades is a trigger group swap. An improved fire control group makes a huge difference. There are many aftermarket trigger options for the AR platform rifles. Choose single-stage or two-stage, either standard trigger assembly or unitized “drop-in” trigger, such as those made by Timney or Triggertech.
When upgraded with a precision trigger and match barrel, AR-platform rigs work great in NRA High Power competitions (Photo from NRA Blog, at Camp Perry).
Two-Stage vs. Single-Stage Triggers
Two-stage triggers have two separate movements. The first stage offers a light, spring-loaded pressure that works against the shooter’s pull until stopping at the second stage – this is called “take-up”. If there is no spring pressure, it is known as “slack”. Should the shooter continue to pull the trigger once he’s arrived at the second stage, the mechanism will operate like a single-stage trigger from there until engaging the sear and firing the gun. Some shooters prefer a two-stage trigger because it allows a mental preparation (first stage) before the final decision to “break the shot”.
Single-stage triggers feature no take-up or slack, as they begin engaging the sear as soon as the shooter begins pulling the trigger. Some competitive shooters prefer the two-stage trigger because of the feedback it provides during its first stage, while other shooters, including those using their rifle in tactical scenarios, may want the surety of a single-stage trigger, ready to engage and fire once their finger is inside the trigger guard. Regardless of preference, a good trigger will feature minimal creep and should be free of grittiness, providing a smooth, even break.
Drop-In Trigger Assembly vs. Standard Trigger Group
Once you decide between a single-stage or two-stage trigger, you can choose between standard and drop-in trigger groups. Standard trigger groups feature all the fire control group parts separated, and need to be pieced together and installed much like a mil-spec trigger, while drop-in trigger are pre-assembled and contained within a casing that simply drops in to the receiver and accepts the pins, hence the name.
After-Market Trigger Comparison
Some shooters prefer drop-in triggers due to the ease of installation, while others opt for standard groups so they can access the components individually for cleaning adjustment or replacement. If one piece of a drop-in trigger fails, you’ll need to either replace the entire unit or send it to the manufacturer for repair, whereas you may be able to simply replace the broken component of a standard trigger without needing a whole new trigger set.
Trigger Terminology — “Creep”, “Stacking”, “Overtravel”
“Creep” or “travel” is the distance the trigger moves between the end of take-up and when the trigger breaks to fire the fun. Too much creep can affect accuracy, but no creep can be unsafe, as the shooter may not be prepared to fire. “Stacking” occurs when the trigger weight actually increases during travel — this shouldn’t happen. Lastly, “overtravel” is the distance the trigger continues moving back after the gun fires.
This article is based on a longer story in the NRA Blog.
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Do you occasionally get completely unexplained flyers, or have a shot land straight down at 6 O’Clock, right below your point of aim? That could be caused by poor or inconsistent trigger technique. How you pull the trigger can and does affect your accuracy.
Many gun enthusiasts start with pistols. When they later start shooting rifles they may carry over some not-so-good practices acquired from shooting handguns with heavy 4 to 6-pound trigger pulls. You may want to “re-learn” your trigger techniques to get better rifle results.
Shooting Sports USA has a good article on trigger technique that offers many useful tips. That article also has many helpful illustrations, including the one shown above. Another illustration shows different types of trigger shoes (straight vs. curved) and explains how each makes a difference: “With a lightly curved trigger, the shooter’s finger can contact the trigger either high or low according to preference. Higher contact will increase the resistance.” READ ARTICLE HERE.
The article analyzes common errors, such as pulling the trigger with the very tip of the finger rather than the pad of the index finger: “Using the tip of the finger can lead to lateral pressure on the trigger, which throws off the shot.”
The article also explains that you should check your trigger regularly to make sure it is functioning properly and is not out of adjustment: “Just like any other moving part, the trigger can suffer from wear. In such a precise mechanism, tiny amounts of wear can cause major problems.”
The ergonomics of the Eliseo Tubegun allow a nice, straight trigger pull.
Trigger Tips
Six Suggestions for Making your Trigger Control More Consistent.
1. If your triggers are adjustable, set the pull weight appropriate to the discipline. For a hunting rifle, you don’t want an ultra-light trigger pull. For High Power, you may want a two-stage pull, while on a Benchrest rifle you may prefer a very light trigger.
2. If you have a two-stage trigger, experiment with different combinations of First Stage and Second Stage.
3. Have a friend watch you as you pull the trigger, and maybe even take a close-up video as you pull the trigger. This can reveal a variety of flaws.
4. Practice dry-firing to see if flaws in trigger technique are causing gun movement.
5. As an experiment, try pulling the trigger with your middle finger. Ergonomically, the middle finger has a more straight alignment with the tendons in your hand. This exercise can help you identify alignment issues with your index finger.
6. For stocks with adjustable Length of Pull you may want to set the LOP differently for bench shooting vs. prone or F-Class shooting.
The Bix’N Andy trigger is one of the very best you can buy. It can be fitted with a variety of trigger shoes according to shooter preference.
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Multi-time National High Power champion David Tubb has developed an impressive two-stage trigger for Remington 700 rifles, the Model T7T. Priced at $385.00, the T7T Trigger is a true two-stage design: first and second stages are independently adjustable for both weight and feel. Overall (combined stage) trigger pull weight can be adjusted from just under 1 pound to slightly over 3.5 pounds.
The new T7T is a quality product. We’ve used the T7T and it proved crisp, repeatable, and reliable. If you are looking for a two-stage trigger for a precision rifle, this is a good option. We like a two-stage trigger for PRS applications, and the T7T can be adjusted high enough for that role. Or, it can go all the way down to under a pound — low enough to suit most F-Class shooters.
If you are interested in the T7T, watch these two videos. The first shows how to adjust pull-weights for both stages. The second video shows how to modify your stock to provide clearance for the T7T.
This video shows how to adjust the new Tubb T7T two-stage trigger for Remington 700s:
T7T Trigger Installation Tips
While installation of the T7T may require minor modifications to your action, most gun owners with basic mechanical skills can install the T7T by themselves. Note: As installed, the T7T trigger (either Right-Hand or Left-Hand) also requires a companion T7T bolt release, which you can get from DavidTubb.com for $10.00.
This video shows how to modify your stock to fit the T7T trigger:
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M-K IIA2 GEN2 Tactical Trigger from The Wisconsin Trigger Co.
Gear Review by Johnny Fisher
Do you shoot an AR-platform rifle? Here’s an excellent trigger upgrade option that has recently returned to the marketplace. The Wisconsin Trigger Company (WITC) has resumed production of the legendary Milazzo-Krieger M-K II trigger for the AR-platform rifles. Not merely marketing a replica of the original Milazzo-Krieger design, Wisconsin Trigger now offers an enhanced, drop-in version called the M-K IIA2. An easy install, the Milazzo-Krieger trigger drops in with no special tools or machining required (and no modification of the safety selector switch).
For those who are looking for an extremely crisp AR15 trigger that closely mirrors the “feel” of a finely tuned M1 / M14 trigger, this trigger might be the solution. The first stage is exceptionally clean and smooth due to a proprietary diamond-grinding process. I felt that the first stage travel was longer than a Geissele, but many guys will prefer that. Upon reaching the very noticeable and defined “wall” of the second stage, a further increase of pressure provides the instantaneous snap one looks for in a high-quality trigger — complete with a total absence of anything resembling creep or slop.
If you follow the instructions in the box and watch WITC’s informative how-to videos, installation of this trigger is extremely straightforward, requiring no special tools or fitting.
As supplied straight from the factory, the first stage requires about 2.25 pounds of take-up before encountering “the wall” of the second stage. For this purpose of this review and to ensure “making weight” in CMP Service Rifle Competitions, the (white) 5-lb. disconnector spring was used. The weight of the second stage came in right at an extremely repeatable 5 lb. 3 oz. (averaging +/- 1.5 oz.) for a ratio of about 40/60 between the two.
Upon release of the hammer, the disconnector reset is decidedly short. National Match shooters in particular will appreciate the very short but easy-to-recognize trigger reset during rapid-fire strings.
Tuning the Trigger Before Installation
As with most National Match-grade triggers on the market, the Millazo-Krieger utilizes proprietary pins that come supplied with this unit. They must be used for final installation and are purposely oversized to a specific diameter for a very snug fit. This is to ensure the trigger and hammer rotate solely on the pins, as opposed to the pins eventually rotating inside the receiver. It is best to use standard sized mil-spec trigger and hammer pins for the setting of tensions (trigger weight) before final installation to help avoid undue wear to the receiver pin holes. Final adjustment of second-stage pull weight must be done BEFORE final installation.
It is recommended to first set the amount of desired disconnector engagement by performing a very simple process that is detailed in the included installation instructions from the TOP of the trigger. The swapping out of disconnector springs and final tuning of the second stage can then be done, but only from UNDERNEATH a disassembled trigger.
The disconnector tensioning springs are easily swapped out by removing the spring plug from the bottom of the trigger housing that exposes the spring pocket. After inserting the desired weight spring, the spring plug must be installed at least flush with the bottom of the trigger housing. Installing it deeper will add trigger pull weight on the second stage. Installing it too shallow will interfere with trigger movement.
Transferable Warrnty:
The Wisconsin Trigger Company offers a full lifetime warranty to all unaltered parts of its triggers. This lifetime warranty is fully transferable when the trigger is sold to a new user! When have you heard of an AR component manufacturer with a transferable warranty — we’re impressed.
Not just a retailer, John Scandale of Keystone Accuracy is a distributor of these triggers. He currently has many in stock and for sale at a very special introductory price.
What Comes in the Box:
The $265.75 trigger kits come complete with everything you need: Trigger unit assembly, trigger return spring, full strength hammer spring, two proprietary oversized trigger & hammer pivot pins and three disconnector tensioning springs (3.25 lb., 4.5 lb., 5.0 lb.). Also included is a comprehensive installation manual, a color-coded disconnector spring selection chart, some promotional items, and the lifetime warranty card.
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New from Howa, is the Howa Actuator Controlled Trigger (HACT). This two-stage-style trigger system lightens the trigger pull weight, and reduces the amount of trigger creep. HACT trigger units will fit all Howa M-1500 rifles that were previously equipped with a three-position safety. The HACT trigger assembly is a completely redesigned trigger and sear unit with a lighter, two-stage-style trigger pull. HACT pull-weight range is 2.5 to 3.8 pounds; the factory default setting is 3 pounds.
Writing for the Western Outdoor News, WONews.com, Steve Comus has field-tested the new HACT Trigger. Steve writes: “I always liked two-stage triggers, because of the way I could take-up the slack and then actually know when the rifle was going to go off. The take-up on the [HACT] trigger was fast and easy. The crisp, positive release when pressure was put on during the second stage [reminded me] of some of the target rifles I shot through the years.”
HACT Retrofit Kit Coming in Mid-2012
The HACT trigger will eventually be available as a retrofit for existing Howa 1500 and Weatherby Vanguard Rifles. According to Legacy Sports Int’l Marketing VP Andy McCormick, the retrofit kits “should cost under $100.00 MSRP and should fit all Howa and Weatherby Vanguard short-action rifle with the current three-position safety… and that includes most of these rifles sold in the last 5 or 6 years”. Trigger Kits will be packaged with instructions. McCormick expects much interest in the HACT retrofit kit: “It’s a great two-stage trigger. I would say the HACT trigger kit will be available as a single accessory item by mid-summer 2012. Stay tuned to LegacySports.com for updates.”
Howa Detachable Magazine Kit, Just $98.00 Complete
The recently-introduced Detachable Box Magazine (DBM) Conversion Kit for Howa and Weatherby Vanguard rifles has proven extremely popular. This $98.00 kit includes new plastic floorplate and trigger housing plus either a 5-round or 10-round polymer magazine (as the customer prefers). The DBM Kit saves 1/4 lb. of weight as compared to hinged bottom metal. Made for target shooters and varmint hunters, these POLYMER BODY magazines allow you to turn your 4-round box magazine into a high-capacity DBM system. Conversion kits are currently available for .204, .223, 22-250, .243, 7mm-08, and .308 Win short action Howa rifles. These kits will also fit most late-model, short action Weatherby Vanguard Rifles.
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X-Treme Shooting Products has announced that its new line of Titanium actions is in full production, with short and long receivers ready to ship. The .338 receivers should be ready by the time of the NRA Annual meeting in late April. X-Treme Shooting is currently the only manufacturer of Titanium rifle receivers in the USA. Titanium construction offers significant weight savings, without compromising durability. On a long-action build, using a Titanium action could save up to 10 ounces. The short and long Titanium receivers both have a Rem 700 footprint, but with enhancements for improved function and accuracy. These are custom-grade actions, “absolutely true and dimensionally correct.”
Benefits of Titanium Construction
Why Titanium? In addition to being much lighter than steel (by volume), Titanium is extremely strong, and very corrosion-resistant. That is why it is used for critical parts in jet airplanes and spacecraft. Titanium is as strong as steel, but 45% lighter. It is 60% heavier than aluminum, but twice as strong. Titanium has the highest strength to weight ratio of any common metal. Titanium does requires special milling tools and techniques for production. However, it is otherwise a highly-desirable material for rifle actions because it is light, strong, and corrosion-resistant.
New CG INCH Action Available
X-Treme Shooting sells a variety of other precision products, including the CG X-Treme Mod22 two-stage trigger, the Centra Goliath Front Sight, and the CG INCH target action from Australia shown below. The new INCH action, designed by Robert Chombart, are offered with either .308 or .223 bolt faces, for $1075.00. This is an excellent action for F-Class and Fullbore shooters. Call for finish options and other details.
For more information or to place an order, email ctmyers [at] x-tremeshooting.com, or call (513) 313-3464, or visit X-TremeShooting.com.
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Two-Stage vs. Single-Stage Triggers
Transferable Warrnty:
New from Howa, is the Howa Actuator Controlled Trigger (HACT). This two-stage-style trigger system lightens the trigger pull weight, and reduces the amount of trigger creep. HACT trigger units will fit all Howa M-1500 rifles that were previously equipped with a three-position safety. The HACT trigger assembly is a completely redesigned trigger and sear unit with a lighter, two-stage-style trigger pull. HACT pull-weight range is 2.5 to 3.8 pounds; the factory default setting is 3 pounds.
Benefits of Titanium Construction
