Rock River Arms Uppers Gun Parts
(2 deals total)

  • Uppers
  • Rock River Arms

Filter Rock River Arms Uppers Gun Parts

35 months ago
739-000-021WB Forged A4 Upper Receiver Assembly Cartridge: 5.56 mm NATO Finish: Black Description Specs Forged aluminum A4 style upper receivers with ejection port cover and forward assist installed. Features M4 feed ramps. SKU#: AR0052BASY
82 months ago
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.