COLT LE6945CK UPPER RECEIVER CONVERSION KIT 5.56 10.3"

COLT LE6940CK UPPER RECEIVER CONVERSION KIT 5.56 16.1"

COLT LE6944PCK UPPER RECEIVER CONVERSION KIT 5.56 14.5"

COLT LE6943CK UPPER RECEIVER CONVERSION KIT 5.56 11.5"

USED Gemtech Integra 5.56 Upper 10.5" Barrel Black

Daniel Defense 2300408013011 MK18 Upper Group 5.56x45mm NATO…

SOLGW AR-15 STRIPPED UPPER RECEIVER

BLACK RAIN UPPER RECEIVER 223REM BLK

ZAFFIRI UPK-G19G4 COMPLETE UPPER KIT G19 G4

Colt