Shop 33 Deals on Primary Weapons Systems Upper Receivers

Primary Weapons Systems MK116 Mod 1-M 16.10" Upper .223 Wylde 1:8 M-LOK Rail, Black

Primary Weapons Systems MK114 Mod 1-M 14.50" Upper .223 Wylde 1:8 M-LOK Rail Mid-Length, Black

Primary Weapons Systems MK114 MOD2-M Upper Receiver .223 Wylde 14.5in bbl No Compensator Black

Primary Weapons Systems MK116 Pro Upper 223 Wylde/556NATO 16.1" Barrel, Black - 19-PM116UA0B

Primary Weapons Systems MK114 Mod 1-M 14.50" Upper .223 Wylde 1:8 M-LOK Mid-Length with Charging Handle, Black - Precision Accuracy - M114UA01-2F-NC

Primary Weapons Systems MK114 Mod 2-M Upper .223 Wylde 14.5 Barrel

Primary Weapons Systems MK111 Pro Upper .223 Wylde 11.85 Barrel

Primary Weapons Systems MK116 MOD 1-M .223 Wylde 16" Barrel Complete Upper, Chrome-Lined Black - M116UA0B

Primary Weapons Systems MK111 MOD 2-M .223 Wylde 11.85" Barrel Complete Upper, Black - 182M111UA0B

Primary Weapons Systems MK111 Mod 1-M 11.85" Upper .223 Wylde M-LOK Rail, Black

Primary Weapons Systems MK116 .223 Wylde Upper with 16.1" Barrel, Black - 182M116UA0B

Primary Weapons Systems MK107 Mod 2-M Upper Receiver 7.62X39 7.75 Barrel CQB 30 Muzzle Device Anodized Finish Black MLOK Handguard Long Stroke Piston

Primary Weapons Systems MK1 Mod 1 Complete Upper .223 Wylde 7.75 Barrel

Primary Weapons Systems MK1 Mod-1M Upper for AR-15 .223 Wylde 11.8 Barrel

Primary Weapons Systems MK109 MOD 2-M Pistol Upper Receiver .300 AAC Blackout 9.75in Barrel 1-8 Twist Matte Black

Primary Weapons Systems MK116 MOD 1-M Upper .223 Wylde 16.1 Barrel

Primary Weapons Systems MK109 MOD1-M Upper Receiver 9.75 inch Barrel 1-8 Twist Matte Black

Primary Weapons Systems MK116 MOD 2-M Upper .223 Wylde 16.1 Barrel

Primary Weapons Systems MK116 MOD2-M Upper Receiver 16in bbl .223 Wylde 3-Setting Adjustable Gas System FSC556 Compemsator Black

Primary Weapons Systems MK116 MOD 2-M Upper Receiver 7.62x39 16.1in 1-10 Twist FSC 30 3-Setting Adjustable Gas System Black

Primary Weapons Systems MK116 MOD 1-M Upper Receiver 7.62x39 16.1in Pistol Length 1-10 Twist PWS Triad 30 3-Setting Adjustable Gas System Black

Primary Weapons Systems MK111 Mod 2-M, Upper Receiver, 7.62X39, 11.85 in Barrel, Triad30 Muzzle Device, Anodized Finish, Black, MLOK Handguard, Long Stroke Piston System, Adjustable Gas System, Fits AR-15 2M111UF01-1F

Primary Weapons Systems MK111 Mod 1-M Upper 7.62 X 39 11.8 Barrel

Primary Weapons Systems MK218 MOD1-M Upper Receiver 18in bbl 6.5 Creedmoor 3-Setting Adjustable Gas System PRC30 Compensator Black