The AR-STONER AR-15 A3 Upper Receiver Assembly chambered in 300 AAC Blackout is ready to be assembled to a complete lower and fired! This AR-STONER upper features a pistol gas system for use with supersonic or subsonic ammo, a mil-spec bolt carrier group, a 7.5” medium contour barrel , 7” free float, AR-Stoner M-Lok handguard.
Securely mount popular accessories directly to the precision M-Lok cutouts and attach your sling to the integrated QD mounts with this optimum handguard. This sleek and ergonomic free float handguard meets shooters needs without sacrificing strength and performance.
The A3 upper assembly will attach to virtually any standard AR-15 lower receiver and comes complete with charging handle, forward assist, ejection port cover, A2 flash hider, bolt and bolt carrier assembly. Supplied without sights, this upper is a great platform for a red dot sight or iron sights (both sold separately).
- Complete Bolt Carrier Group
- 7″ M-Lok Ultralite Handguard
- 7.5” Barrel
- Flash Hider
Made In United States of America
|Cartridge||300 AAC Blackout (7.62x35mm)|
|Barrel Length||7.5 Inches|
|Gas Block Diameter||0.75 Inches|
|Gas System Length||Pistol|
|M4 Feed Ramps||Yes|
|Upper Receiver Type||A3 Flat-Top|
|Bolt Carrier Assembly Included||Yes|
|Muzzle Device||Flash Hider|
|Mil-Spec or Commercial||Mil-Spec|
|Country of Origin||United States of America|
|Shipping Weight||3.985 Pounds|