THE BASIC PRINCIPLES OF COLT COMBAT UNIT RAIL GUN 45

The M16A2 buttstock is about five/eight" of an inch more time then the earlier styles.  As a result of greater size it employed an extended buttstock screw and also a spacer.  The swivel is mounted closer into the buttplate. This buttstock is presently made use of to the M16A4:The barrel is often a 1970's or 1980's, for the reason that that may b