Complete Upper Receivers

Maxim Defense MDX 510 300BLK Mil-Spec Complete Upper - 10.3" Urban Grey

Rainier Arms RUC 5.56 NATO DI Complete Upper - 16"

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)

Daniel Defense MK18 RIII Complete Upper Receiver - 10.3" Black

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

SIG SAUER MCX Rattler 5.56 NATO Complete Upper - 5.5"

Daniel Defense MK18 5.56 NATO Complete Upper Receiver - 10.3" Black

Maxim Defense MDX 505 PDX Mil-Spec Complete Upper - 5.5" Arid

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"

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

VKTR Industries VK-1 5.56 NATO Piston Complete Upper Receiver Group

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

Bravo Company MFG (BCM) MK2 Standard Complete Upper W/RAIDER-M13 Handguard

Bravo Company MFG (BCM) MK2 AR-15 5.56 NATO Complete Upper Receiver Group - 18"