AR-STONER AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16″ Barrel with 15″ M-LOK Ultralight Handguard


Category: Product ID: 19071


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 1:8” twist and parkerized finish, M2 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
  • M2 Flash Hider
  • Chambered in 5.56x45mm NATO

Made In United States of America

WARNING: Cancer and Reproductive Harm –


Product Information

Color Black
Finish Anodized
Material Aluminum
Weight 5.3 Pound
Barrel Length 16 Inches
Twist 1:8 Inches
Threads 1/2″-28
Barrel Contour M4
Barrel Finish Parkerized
Chrome Lined No
Gas Block Diameter 0.75 Inches
Gas System Length Carbine
M4 Feed Ramps Yes
Upper Receiver Type A3 Flat-Top
Barrel Material 4150 Chrome Moly Vanadium Steel
Handguard 15″ M-Lok Ultralight
Bolt Carrier Assembly Included Yes
Muzzle Device Flash Hider
Country of Origin United States of America

Delivery Information

Shipping Weight 5.290 Pounds


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