Complete Upper Receivers

Primary Weapons Systems 300 BLK MK1 MOD 2-M Complete Upper - 9.75"

Primary Weapons Systems 300 BLK MK109 MOD 1-M Complete Upper - 9.75"

Stern Defense AR 9mm MOD5 MLOK Complete Upper - 10.5"

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

Maxim Defense MDX 505 PDX 300BLK Mil-Spec Complete Upper - 5.5" Urban Grey

Maxim Defense MDX 505 PDX 7.62x39 Mil-Spec Complete Upper - 5.5" Urban Grey

Maxim Defense MDX 505 PDX 5.56 NATO Mil-Spec Complete Upper - 5.5" Urban Grey

Arms Republic 9mm Complete Upper Assembly - 16"

Aero Precision M4E1 300BLK Complete Upper Receiver w/Atlas R-ONE Handguard - 8" Black

Rainier Arms / Rellim Arms AR-15 .223 Wylde Take Down Upper Receiver Assembly - 8.5"

Rainier Arms / Rellim Arms AR-15 5.56 NATO Take Down Upper Receiver Assembly - 16"

Dead Foot Arms AR-15 AR-SD 9MM Upper Assembly

Dead Foot Arms AR-15 AR-MP9 9MM Upper Assembly

Daniel Defense DD4 RIII Complete Upper Receiver - 16" Black

Angstadt Arms 16″ 9mm Complete Upper Assembly

Maxim Defense MDX 508 300 BLK Mil-Spec Complete Upper - 8.5"

Sionics Weapon Systems (SWS) AR-15 Premium Complete 5.56 Upper Receiver - 11.5" (Phosphate BCG)

Sionics Weapon Systems (SWS) AR-15 Premium Complete 5.56 Upper Receiver - 16" (Phosphate BCG)

Foxtrot Mike (FM) Products AR-15 Mike-15 Gen 2 .223 Wylde Complete Upper Receiver - 16" (Rainier Arms Exclusive)

Maxim Defense MDX 508 5.56 Mil-Spec Complete Upper - 8.5"

Blackout Defense Quantum Mark 2 .223 Wylde Complete Upper Receiver

Bravo Company MFG (BCM) MK2 5.56 NATO Upper Receiver Group w/ MCMR-13 Handguard - 14.5" FDE

R&D Precision 9mm PW9-R Bufferless Upper Kit – 16"

Foxtrot Mike (FM) Products AR-15 5.56MM FM-15 Gen 2 Complete Upper Receiver - 13.9" (Rainier Arms Exclusive)

Matador Arms MAT-9 9MM Blowback Upper Receiver

Daniel Defense DD4 RIII S 5.56 Nato Complete Upper Receiver - 11.5" FDE

Angstadt Arms AR-15 5.56 Complete Upper Assembly - 16"

Noveske AR-15 N4 5.56 NATO SPR Upper - 18"

Noveske N4 Afghan Gen 4 5.56 NATO Complete Upper - 14.5" Black

Noveske GEN 4 Carry Handle Diplomat 300BLK Upper Receiver Group - 7.94"

Noveske N4 Recon Gen 4 5.56 NATO Complete Upper - 16" Black