Quote:
Originally Posted by RKP
How did the above work out for you?
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Oddly enough, quite well. The tube and block are now aligned, with the roll pin flush and in place. And I was able to blow on the tube and feel the air jet with my finger inside the block. so I know those holes are aligned. The way I did it was to align the tube into block by the "paper clip" method as described. Then, I taped the tube with Scotch tape directly onto the block, which did anchor it enough for me to keep the tube aligned and get the roll pin started. A little "Liquid Wrench" in the right place after I had the pin 2/3rds in place and, after a few minutes, the roll pin went right in.
The bad news is, when I was doing this, I forgot that the BCG is not fixed inside the upper and both it and the charging handle came right out!
I figured out that I have to have the bolt in the locked position (bolt extended) in order ro re-insert it, and I was able to do that. It clicked right into place. But getting the charging handle to fit in again, has been an issue. I had bought the upper "assembled" so I never did go through putting the BCG and charging handle together into the upper. I guess I'll have to review my videos on how to do that, unless you good folks have some suggestions.
That said, I want to go over something I mentioned in my last update but got no bites on it.
Has anyone found a good method of testing the action without having to fire a round? Once fully assembled, I was thinking of attempting to "pressure test" the action by blowing a pressurized shot of compressed air down the barrel to simulate a firing (since I can't test fire with actual firing, where I live). I would use some empty brass, so it could be extracted without difficulty. Then let a dummy snap cap be the next round to go into battery.
I want to get at least 2-3 "action tests" in before I go test fire it with live rounds on a range. The issue is going to find a module I can use to fit into the barrel to give it the "test shot of air." I also need to know what PSI would be optimal. Does anyone know what the standard PSI rating is for an xm855 green tip fired from the barrel?
Thanks all! I'll keep you posted.
