ArmaLite AR10 (B) 3 Gun Upper Assy 18" bbl UAR103GN18B ArmaLite Parts
AR10 (B) 3 Gun Upper Assy 18" bbl
The AR103GN’s are Armalite’s flagship competition rifles that are built to win. This upper is light and ultra-fast. The low profile handguard covers a free-floating 18-in barrel with Armalite’s own tunable muzzle brake. An adjustable gas block also allows the rifle to be individually set for optimal performance with a wide variety of ammunition. Includes a bolt carrier group and charging handle.
*Compatible with Armalite AR-10® B-Series lowers.
Attachment Method MLOK
Product Line AR-10® Uppers
Product Category Competition B Series
Caliber .308 Win | 7.62x51
Barrel HB, Match Grade, Stainless Steel
Barrel Length 18"
Twist Rate 1:10RH
Muzzle Device Armalite Tunable Competition Muzzle Brake
Front Sight Base
2" MIL-STD 1913 Rail Section
Handguard 15" Competition
Forged, Flat-Top with MIL-STD 1913 Rail, 7075-T6 Aluminum
Charging Handle "Raptor" Ambidextrous
Finish Hard Anodized Aluminum
Bolt Carrier Group, Charging Handle
NOTE: All items are used unless otherwise indicated. Parts kits are NOT functioning firearms; they are parts kits, sold as-is and may include incompatible components. All parts kits sold on this site include everything pictured. They do not include a receiver and we do not sell receivers. No firearms are sold on this site. All ITAR rules in effect. Read more
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