LITTLE KNOWN FACTS ABOUT COLT MONOLITHIC UPPER 11.5 FOR SALE.

Distinctive direct gas working procedure removes the conventional working rod and ends in less and lighter partsBe aware:  The Colt LE6940 relatives of uppers are proprietary built, with couple person serviceable sections. Precise equipment are required to eliminate the barrel nut and barrel.  The fuel procedure is unique and not made to get rep