AR-STONER AR-15 Side Charging Upper Receiver Assembly 6.5 Grendel 20″ Barrel 15″ M-LOK Ultralight Handguard

Product Overview Designed to meet Customer's needs, the AR-STONER™ AR-15 Slick Sided 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 Nitride finish, M2 flash hider, and an ultra-lightweight free float M-Lok Handguard. This Slick Side upper has no forward assist or dust cover. 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. Features Complete Bolt Carrier Group Ultralight M-Lok Handguard Slick side upper receiver Specifications Product Information Cartridge 6.5 Grendel Color Black Finish Anodized Material Aluminum Weight 3.8 Pound Barrel Length 16 Inches Twist 1:8 Inches Threads 5/8"-24 Barrel Contour M4 Barrel Finish Black Nitride Chrome Lined No Gas Block Diameter 0.75 Inches Gas System Length Carbine Upper Receiver Type Slick-Side Flat-Top Barrel Material 4150 Chrome Moly Vanadium Steel Handguard 12" M-LOK Ultralight Bolt Carrier Assembly Included Yes Muzzle Device Flash Hider Country of Origin United States of America Compatible With AR-15 Delivery Information Shipping Weight 5.135 Pounds

Barrel Length: 16 Inches Twist: 1:8 Inches Gas System Length: Carbine

Barrel Length: 20 Inches Twist: 1:10 Inches Gas System Length: Rifle

Cartridge: 7.62x39mm Barrel Length: 16 Inches Twist: 1:10 Inches Compatible With: AR-15 Gas System Length: Carbine