Precision/precision testing of the barrel was executed following a 200 round split-in period of time. All capturing was completed from my bench-rest set-up adhering to my standard protocol. Over time the Maritime Corps did approve the use of the six-situation collapsing stock on M16s for scaled-down shooters to work with https://caidenesisb.bloggazza.com/28892702/little-known-facts-about-knights-armament-m4-quad-rail