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7/8/2020 3:01:36 PM
Posted: 5/1/2009 7:35:47 AM EDT
I have heard rumors that the upper rails are a little high on the tapco flats with the prebent upper rails. Has anyone had any experience with these? I built 1 romy with these flats and sometimes it misses the back of the round while cycling and it pinches the round between the bolt and the chamber. sometimes is will just flat out miss the shell in the magazine. RIght now with the magazine locked and empty the bolt almost touches the dimple on the follower. I put about 140 rounds through it and had this problem I think7 times. When cycling by hand the problem has a higher occurrence. There is also a little up and down play with the carrier and the top rails. Is this normal?

If you can shed any light on the matter it would be much appreciated.

Note: according to some specs I found, my rails are about 0.05 inches too tall. Is this enough to cause a problem? My inside dimension are like 1.63 ish inches and the 555th jig plans call for an inside dimension of 1.58 (at the most rearward portion of the receiver).
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