The ArmaLite AR-10 .308 Win 13.5" 3-Gun Rifle is a semi-automatic platform engineered for shooters who demand precision and speed in practical rifle competition. Built on a purpose-driven design, this rifle strips away excess weight and complexity to deliver a nimble, predictable platform that handles the transitions and accuracy demands of three-gun matches. At 8.8 lbs, it's light enough to manage during a string of fire, yet built on proven AR-10 architecture that shooters trust downrange.
The 13.5" stainless steel barrel is fitted with ArmaLite's tunable brake (pinned and welded), giving you the ability to adjust performance for recoil management and muzzle rise control—critical when you're chasing tight stage times. The aluminum upper and lower receivers are hard-anodized black, paired with an MBA-1 adjustable buttstock that lets you dial in length-of-pull and cheekpiece height for a consistent, comfortable position across different shooting positions. An Ergo wide grip and ambidextrous safety ensure intuitive handling whether you shoot right- or left-handed, and the Raptor charging handle gives you positive purchase when you need speed.
The standout feature for competition is the Timney 4-pound single-stage trigger—crisp, predictable, and built for the precision required in precision rifle and three-gun stages. Magazines are simple: the rifle ships with one 25-round Magpul PMAG, and any AR-10 .308 mag platform will work. The entire package—from its 36.3" to 37.3" length-of-envelope to its minimalist, flat-topped design—reflects the compromises top three-gun competitors actually make.
Whether you're stepping into competitive rifle shooting or upgrading your practical rifle setup, the AR-10 .308 3-Gun from ArmaLite is ready to run as it comes out of the box.
| Brand | ArmaLite |
| Model | AR-10 .308 Win 13.5" 3-Gun |
| Caliber | .308 Winchester (7.62 NATO) |
| Action | Semi-automatic |
| Barrel Length | 13.5" |
| Barrel Material | Stainless steel |
| Barrel Twist | 1:10 |
| Muzzle Device | ArmaLite tunable brake (pinned/welded) |
| Magazine Capacity | 25 rounds |
| Upper Receiver | Aluminum, black anodized |
| Lower Receiver | Aluminum, black anodized |
| Buttstock | MBA-1 adjustable (length-of-pull and cheekpiece) |
| Pistol Grip | Ergo wide grip, black |
| Trigger | Timney single-stage, 4 lbs |
| Safety | Ambidextrous |
| Charging Handle | Raptor |
| Overall Length | 36.3" – 37.3" (stock dependent) |
| Weight | 8.8 lbs |
| Included | One 25-round Magpul PMAG |
The rifle uses standard AR-10 .308 Winchester magazine platforms. It ships with one 25-round Magpul PMAG, and any compatible AR-10 mag will function in this rifle.
Yes. The ArmaLite tunable brake on the 13.5" barrel comes pinned and welded from the factory, complying with barrel length regulations in jurisdictions where shorter barrels are restricted.
Yes. The MBA-1 adjustable buttstock allows you to adjust both length-of-pull and cheekpiece height independently, so you can dial in a consistent sight picture and shoulder fit whether you're shooting prone, barricade, or on the move.
The ArmaLite AR-10 is purpose-built for competitive three-gun shooting, so it's optimized for speed and precision in a match environment. Experienced shooters and those stepping into competitive rifle will find it most at home on a three-gun course, though it functions as a capable .308 platform for any discipline.
Firearm Shipments:
To buy rifles or shotguns, you must be 18 years old, and for handguns, actions, or receivers, the minimum age is 21. By placing an order for this firearm, you confirm that you are the legitimate transferee/buyer, meet the legal age requirements, and comply with all Federal, State, and local laws and regulations necessary to purchase this firearm.
We only ship firearms to valid Federal Firearms License (FFL) holders. At checkout we provide a FFL locator for your convenience.
We will need a copy of the FFL’s license to facilitate the process, kindly request your dealer to email us a copy of their FFL, as we cannot dispatch the firearm until we receive this document. It is imperative for the buyer to choose their FFL dealer, ensure they are willing to facilitate the transfer, and have them email their FFL copy to BOSQUE Outdoors. To avoid any confusion, the customer's name or order number must be mentioned in the email containing the FFL.
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