Armalite AR-10A 3-Gun 7.62 NATO Semi-Auto Rifle, 14" Stainless Barrel Pinned/Welded to 16.5", Free-Float M-LOK, Tunable Brake, Radian Raptor
This Armalite AR-10A 3-Gun brings proven 7.62 NATO performance with competition-focused features. It uses a 14" stainless barrel pinned and welded to approximately 16.5" with Armalite's tunable multi-port brake, a free-float M-LOK handguard, and a Radian Raptor ambidextrous charging handle. The flat-top upper with T-markings and SR-25/LR-308 magazine compatibility round out a feature set built for practical precision and fast handling.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Light handling marks are present from prior use. Please refer to the photos for a close look at the noted areas.
What’s Included
- Armalite AR-10A 3-Gun 7.62 NATO semi-automatic rifle
- 1 Magpul PMAG LR/SR 7.62x51 25-round polymer magazine
The AR-10A 3-Gun series pairs a semi-automatic, direct-impingement system with aluminum-alloy receivers. The upper receiver features a flat-top Picatinny rail with T-markings, an ejection-port cover, and a brass deflector. The lower is marked AR-10A and accepts SR-25/LR-308 pattern magazines.
Its stainless 14" barrel is pinned and welded to approximately 16.5" overall barrel length and uses Armalite's tunable multi-port muzzle brake (US Patent 9,303,939). The barrel has a 1:10 twist and is threaded, with the brake permanently attached. This setup is designed to manage recoil and maintain consistency shot to shot.
The rifle uses a free-float, slim aluminum M-LOK handguard with an ArmaLite branding block and a short 12 o'clock Picatinny segment up front. Controls include a Radian Raptor ambidextrous charging handle, an ERGO textured pistol grip, and an Armalite/Luth-AR–style precision rifle stock mounted on a fixed rifle-length (A1/A2) receiver extension, with adjustable cheek riser and buttpad. Length of pull is 14.25".
Capacity is up to 25+1 with compatible SR-25/LR-308 magazines. The flat-top upper provides a mounting surface for optics and accessories. No sights are included. Made in the United States.
Barrel specification note: 14" barrel pinned and welded to approximately 16.5" overall barrel length.




