Please help!!! I purchased a "new" gas cylinder off of GunBroker.com. Everything seemed fine until I tried fitting it to the gun. It seemed to bind up ever so slightly the last half inch at maximum forward stroke. The weapon fails the "drop" test. (this is what I call and have seen where the op rod/bolt combo "falls" back and forth as you tip it without the spring. I'm guessing this indicates freedom of movement.) Upon inspection it appears there is a bushing in the last half inch (forward most) of the cylinder. I am new to the M1icon, but I have no understanding of any bushing. My old cylinder does not appear to have this. It does seem to be a "good" job in that it blends very well with the wall of the cylinder. But what effect does this have in only the first half inch??? Initial pressure is greatest at this point, and I'm guessing the cylinder is designed to bleed off some of the gas. But is it really "new" if it has a bushing??? I will try to supply pictures and and e-mail if someone want's to speak directly. I'm close to getting GunBroker involved.
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