COLT SP1 REGISTERED RECEIVER CONVERSION 5.56MM 16 INCH M4 UPPER

AR-15 Model SP1 registered receiver

This is a registered receiver Colt AR-15 that has been professionally refurbished by Gary’s Bunker. Gary does a fantastic job on these guns.  He refinishes it with MOLY and converts the lower to a small hole so there is no play with the upper and lower and you can use a standard small hole pin.  A 16 inch Colt Factory M4 Upper sits on the gun as well.