Accuracy/precision tests of the barrel was carried out after a 200 round crack-in period of time. All shooting was completed from my bench-rest set-up next my common protocol. After some time the Marine Corps did approve the use of the six-position collapsing inventory on M16s for smaller shooters to implement https://simonkugvi.get-blogging.com/30010466/the-fact-about-kac-drop-in-rail-that-no-one-is-suggesting