Description
Rock River Arms AR-15 Varmint Upper .223 Rem./5.56 NATO, 20" 1:8 Stainless Steel Bull Barrel, Free Floating Handguard - The Rock River Arms 20" Varmint A4 Complete Upper Half is ready to turn your AR carbine or rifle into a tack-driving, bull barreled precision rifle rig! This complete upper comes with bolt, bolt carrier and charging handle and is ready to go with a .223 Wylde chamber for both 5.56mm and .223 rounds. The upper receiver is a forged A4 type flat-top, the hand-guard is Rock River's Aluminum Free Float tube, and the barrel is an air-gauged stainless steel bull barrel with a 1:8 twist, perfect for longer bullets and long range shootin'! Includes Bolt Carrier Group and Charging Handle Assembly. Barrel diameter is .920" under the picatinny rail gas block, which is RRA's Varmint Gas Block Sight Base.
Caliber: .223 Wylde Chamber for 5.56mm and .223 Caliber
Upper Receiver: Forged A4
Handguard: RRA Aluminum Free Float Tube
Barrel: Air-Gauged Bull Stainless Steel, 1:8 Twist, Cryo Treated
Barrel Diameter: .920 front of gas block, 1.050 under handguard
Gas Block: Varmint Gas Block Sight Base
Made in the USA by Rock River Arms.
SKU: RRAAR0550
i guess these are hard to come by