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Black Rain's Bro AR15 upper has a black hardcoat anodize finish...
Black Rain's Spec15 Complete Upper Receiver has a black hardcoat anodize finish...
Bravo's BCM M4 Upper Receiver Assembly is precision machined to correct Mil-Specs from 7075 T6 forgi..
This Bushmaster upper receiver is made of carbon steel with carbine length hand guards. Its barrel i..
This popular complete upper features a light weight, chrome lined 16" barrel in a M4 "cutout" profil..
This Bushmaster upper receiver has a chrome-lined barrel made of 4150 chrome-moly-vanadium steel fin..
The Optics Ready Carbine upper has a 16" 4150 chrome-moly-vanadium barrel with an M4 profile and har..
Adapted from the very accurate and successful 24" Varminter, the Predator Complete Upper Receiver/Ba..
This complete upper assembly features a 24" Fluted Extra Heavy Barrel in 5.56mm/.223 Rem. caliber wi..
This Bushmaster 300 Blackout upper receiver is made of carbon steel and finished in black teflon. It..
This is a comlete upper in .450 Bushmaster Caliber with 20" barrel and Izzy Suppressor. Includes 4 R..
The Gen-II Pro Series carbine upper is an evolution of the M4 model, adding a 7.8" free float alumin..
The Gen-II Pro Series Rifle upper is an evolution of the M4 model, adding an 11.8" free float alumin..
This stripped upper receiver has a black hardcoat anodized finish and it is compatible with 223 Remi..
CMMG Upper Complete that is built off of the standard forged A3 receiver with M4 feed ramps. The bar..