Gun Digest Book of the AR-15 Volume II by Sweeney Patrick

Author:Sweeney, Patrick
Language: eng
Format: epub
Tags: ebook, book
Publisher: F+W Media
Published: 2011-05-07T16:00:00+00:00

It slices, it dices. Well, the MOACKS does a lot, including let you move a recalcitrant gas tube.

Yes, we see rifles from time to time that lack carrier key staking entirely.

Once you’ve cleaned and degreased the screws, tighten them down and apply the MOACKS.

We’ve been boosting the extractor tension ever since. The first extractors lacked a little gizmo you’ll see today, the plastic booster. When I went through the Colt M-16 Armorers course, I found that Colt has a fancy name for it: the harmonic dampening buffer something-or-other. I was drinking coffee at that point in the course, and almost snorted coffee through my nose. Everyone else just calls it “the plastic extractor gizmo.” I guess to come up with a fancy name takes a corporation or government agency. The early ones were white. Progressively stronger ones (the measure of elasticity in plastics is called “durometer”) got darker and darker. Now the current assembly for M4 carbines is a black gizmo with a gold-colored spring. (The gold denotes a stiffer spring.) I’ve seen a lot of early-production M-16A1 rifles and none have a plastic gizmo at all. And many of them work just fine. But who wants to find out the hard way?

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