Manufacturer: CMMG, Inc. 55B38DA
This upper comes ready from the factory to be assembled to any AR type lower chambered in .223 Remington/5.56 NATO calibers.
Specifications and Features:
.Chambered in .223 Rem/5.56 NATO (accepts .223 Remington)
16" Stainless Barrel
A2 Flash Hider
Black Plastic Handguards
A2 Flattop Upper Receiver