Old Meets New — Modern Modular Chassis for Swiss K31
You’ve never seen a Swiss K31 like this before…
The Sureshot Armament Group (SAG) has developed a modular aluminum chassis for the vintage, straight-pull Swiss K31 rifle. This chassis transforms an old classic into a modern, fast-cycling tactical rig. The SAG Lightweight K31 Rifle Chassis is CNC-Machined from aluminum. Hard anodized, it weighs just 2 lbs. 13 ounces. It offers adjustable cheek piece and butt-pad, with a three-inch LOP adjustment range. Believe it or not, installing a vintage K31 into this SAG stock is an easy bolt-on process. No modification of the K31 action is required.
The chassis-builder SAG states: “The main idea behind the SAG Lightweight K31 Rifle Chassis was to give the shooter …ergonomics of a Tube-gun but with lines of the classic rifle. The chassis ‘wraps’ the shooter around the rifle, moving bolt operation under the shooters cheek to allow the marksman to maintain cheek weld during the whole shooting series.” The chassis design also allows a more forward optics placement for better eye relief.
SAG Lightweight K31 Rifle Chassis Features:
CNC-Machined Aluminum with hard-anodized matte finish
Easy bolt-on installation to Swiss K31
Adjustable Cheek Piece (0-30mm)
Adjustable Buttpad to set LOP (11.5” – 14.5”)
KEYMOD Interface on fore-end and buttstock
Accepts any AR-type pistol grip
Overall chassis weight: 2 lbs. 13 oz. (1280 grams)
Chassis MSRP: €950 ($1163.00 USD)
About Switzerland’s Original Karabiner Model 1931 (K31)
The Karabiner Model 1931 (K31) is a magazine-fed, straight-pull bolt action rifle. It was the standard issue rifle of the Swiss armed forces from 1933 until 1958, though examples remained in service into the 1970s. It has a 6-round removable magazine, and is chambered for the 7.5×55mm Swiss Gewehrpatrone 1911 cartridge (aka GP 11).
Wiki Photo by Bouterolle, CC BY-SA 3.0
Although the K31 is a straight-pull carbine broadly based on previous Swiss “Schmidt–Rubin” service rifles and carbines, the K31 was not designed by Colonel Rudolf Schmidt (1832–1898) as he was not alive in 1931 to do so. Mechanical engineer Eduard Rubin (1846–1920) was the designer of the 7.5×55mm Swiss ammunition for which previous Swiss service rifles and the K31 are chambered. The Karabiner Model 1931 was a new design by the Eidgenössische Waffenfabrik in Bern, Switzerland under Colonel Adolf Furrer (1873–1958). The Karabiner Model 1931 replaced both the Model 1911 rifle and carbine and was gradually replaced by the Stgw 57 from 1958 onwards.
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Tags: Aluminum Chassis, k31, K31 Swiss, Karabiner Model 1931, Russia, SAG, Sureshot Armament Group
Hi guys,
I’m shooting long rang with the creator of this chassis in Switzerland and so, with the club, we have try his prototypes. Let’s fall in L O V E !!
The work he has made for it is as amasing as the result, congatulations. He knows what he is doing… And why he does it, great guy.
We just do not agree togather about the place the scope should have (for me it is laterally only) but the product is not the scope but the chassis.
You can trust oversea you’ll enjoy it.
Best regards from Switzerland
Florian
What is the story with the extended bolt handle in the marketing photos?
Looks like a oversized biathlon rifle
@Florian
Got to give credit where it is due. The actual creator is my partner Val from SAG – the shape and form of it, the fight to get rid of every needless gram, the technology and production – all his.
In all that I was the inspirer, the über-tester and the ammo-waster (two barrels burnt out and some 10K of 7.5×55 burnt away), and an [epic annoyance] designated critic – “gotta change this, gotta add that”.
Finally, after three years of pursuit of Perfection, the ultimate K31 is coming to a store near you
@Ed
The pistol handle is rather lower than the original wooden grip. With the original handle, the shooter’s position is upset at ever charging movement, got to move too much. The extended handle allows for operation just with the index finger and the thumb, practically without moving your elbows away from position. Combined with Colonel Furrer’s straight pull, it means very, very quick follow-up shots.
@dpaqu
And it does handle like a biathlon rifle, if you get my meaning – lightweight, high speed, low drag. Back in the days when biathlon used to be done with adult-size calibres and military gear, that would have been a competition killer.
Hi, will this work with a Schmidt Rubin 1911 (sporterized with a 21″ barrel)?
Thanks…
Doug
@Doug
Can’t see how it would, unfortunately. The 1911 has a significantly longer bolt, and a magazine that is way further forward.
Is the Swiss K 31 Aluminum stock available for
sale in the US.
Thank you.
Emailed a while back and I’m still waiting for the next generation. I was told the first generation was sold out and I would have to wait for the next generation. Any new news on when I can expect to buy in the US?
I am interested in information on getting this chassis for my K31. How can we make this happen?
Bill in Houston TX.
Pgsurfac1@verizon.net
Very interested in this system. How do I order one?
Bill in Houston TX
Pgsurfac1@verizon.net
I would love to order one please let me know when they are in stock
How do I order one?
I would also be interested in this stock but I see allot of questions going unanswered, not a good sign.
I have an action re-barreled with a heavy contour barrel (338 Fed) and wondered if it would fit.
Papalote, TX
Where can I get one of these?