Me and Mr. Dremel had a go at the upper and a old charging handle I had laying around, after a little grinding and polishing there is no more resistance with the CH. The only downside it that the CH is esentially mated to the upper now.
The ejection port issue was solved by swapping out a colt ejection port cover with the one I bought at the show, seems the colt cover and my unnamed upper match up perfectly.
Turns out the upper is an old one that used to be Sold by quality parts, its cast, but from what I was told, it is very good, and will not give me problems.
No problem with the forward assist, I was overreacting
Now I'm happy
I found a A1 upper yesterday at a fun show, it was in mint but used condition, paid $120. first thing I noticed is that it felt a little light, it was stripped, so i didn't think much about it.
Anyway I assembled it today and 4 problems showed up.
#1 The ejection port "thingy", the piece that is machied to accept the ejection port detent was off center by 1/8", this makes it VERY hard to close the cover unless I manually slide the cover to the rear before closing it.
#2 The charging handle barely fits it the upper without significant forward force, read: push like a mother fucker. This got better the more I played with it, but still sticks.
#3 The fwd. assist depresses anywhere between a 1/8" to 1/4" before moving the bolt forward. Unlike my other AR that seems to move 1/8" or less.
#4 The upper looks to me to be cast, but I'm not sure. Here is why I think this.
- Some surface inprefections, such as scratches and something that looks like sandpaper marks below the finish, There are also some areas that look like they are pitted, also below the surface.
- No markings on the upper.
- The outside of the upper where the bolt cam pin rotates in the upper to lock the bolt in place lacks the 1/4" verticle mark, seen on most uppers.
Well that about it. All my USGI parts fitted perfectly.
If the upper was/is used and was refinished, is it possible that ths finish is too heavy to allow the movement of the CH?
Any ideas? Thanks
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