COLT LE6944PCK UPPER RECEIVER CONVERSION KIT 5.56 14.5"

COLT LE6940CK UPPER RECEIVER CONVERSION KIT 5.56 16.1"

COLT LE6945CK UPPER RECEIVER CONVERSION KIT 5.56 10.3"

COLT LE6943CK UPPER RECEIVER CONVERSION KIT 5.56 11.5"

AERO M4E1-T COMPLETE UPPER 14.5 5.56 MID

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

Colt