AR-STONER AR-15 A3 Upper Receiver Assembly 12.7x42mm 16″ Barrel with 15″ M-LOK Ultralight Handguard
Designed to meet Customer’s needs, the AR-STONER AR-15 A3 Upper Receiver Assembly provides function, style and affordability for today’s AR-15. The A3 upper attaches to virtually any standard AR-15 lower receiver and comes complete with everything you need to start shooting. This upper features a carbine-length gas system, 16” barrel with 1:20 twist and parkerized finish, LS2 spiral flash hider, and a lightweight 15” free float M-Lok Handguard. M-Lok Handguard slots allow mounting of popular M-Lok compatible accessories directly to precision cutouts and features integrated QD sling mounts with a sleek design that does not sacrifice strength or ergonomics. Finish building the gun of your dreams at a price that won’t break the bank with the AR-STONER™ AR-15 A3 Upper Receiver Assembly.
- Complete Bolt Carrier Group
- 15″ M-Lok Handguard
- 16” Barrel
- LS2 Spiral Flash Hider
- Chambered in 12.7x42mm
Note: 12.7x42mm is the metric designation for the 50 Beowulf. 50 Beowulf is a registered trademark of Alexander Arms.
Made In United States of America
|Barrel Length||16 Inches|
|Barrel Material||4150 Chrome Moly Vanadium Steel|
|Gas Block Diameter||0.936 Inches|
|Gas System Length||Carbine|
|M4 Feed Ramps||No|
|Upper Receiver Type||A3 Flat-Top|
|Handguard||15″ M-Lok Ultralight|
|Bolt Carrier Assembly Included||Yes|
|Muzzle Device||LS2 Spiral Flash Hider|
|Country of Origin||United States of America|
|Shipping Weight||5.910 Pounds|
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