Posted: 1/26/2009 3:19:06 PM EDT
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It all started when I got my CAR kit. I was spraying a little bit of degreaser on the upper to clean off the thick grease it was packed in before I applied some CLP and put it away. Well, when the degreaser evaporated off the ejection port cover, it was obvious a bit of rust had formed there.
That kind of freaked me out so I checked every bit of every part I could. Sure enough there was some more rust inside the back end of the bolt carrier. The ejection port cover I sanded with a 600 grit paper to remove the rust. For the bolt carrier I used Naval Jelly. I got virtually all of the rust, but some of the parkerization or bluing (not sure which finish they use) was removed also. I figure I'd just buy another bolt carrier group. I'd have spare parts and a brand new BCG I hadn't messed with. Problem is the new RRA bolt carrier group I got from PK Firearms doesn't cycle smoothly. I can't tell what is wrong exactly, but the last two inches or so of pull on the charging handle are not smooth and the BCG sticks there. I see no difference between the new BCG and the old one that would cause this. Should I call RRA or PK to exchange the BCG? Does anybody know what might be going on with the new BCG? |