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1/25/2018 7:38:29 AM
Posted: 1/17/2006 5:50:04 PM EST
Hello all. This is my first post on this great forum.

I just recently bought my first AR15, a Bushmaster M4A3. I love it so far and have had no problems with the first 300 rounds. My question is regarding the last round in a magazine. I was under the impression that after the last round, the bolt would stay back so that a new mag could quickly be put in then the bolt release on the left side could just be tapped to chamber a fresh round(s). Mine does not do this. After the last round, the bolt is closed and I have to rack the charging handle again after a new mag goes in. Is this normal? As I said, I am new to ARs so am not really sure. I thought I had read somewhere that the bolt should stay open. Ideas? Sugestions? Thanks.

I tried to search but couldnt find anything,.
Link Posted: 1/17/2006 5:51:33 PM EST
[Last Edit: 1/17/2006 5:52:01 PM EST by Stickman]
Try a different magazine, thats the usual problem.
Link Posted: 1/17/2006 5:52:15 PM EST
Check your magazine... Bolt catch is pushed up by the folllower...Try a different mag maybe?
Link Posted: 1/17/2006 5:56:17 PM EST
As already suggested, try a different mag.

Are you able to lock the bolt open manually, by pulling back the CH and pulling out on the bolt release?
Link Posted: 1/17/2006 5:56:18 PM EST
It does this with all 5 magazines that I have. They are all Bushmaster marked. I assumed it was a magazine follower thing (like with a pistol) but is there anything on the gun itself that would cause this?
Link Posted: 1/17/2006 5:58:04 PM EST
Also, even with an empty mag in the gun, if I pull back the charging handle, the bolt will only stay if I push down the bolt release (doesnt hold automatically). Is it possible I just have some old mags? They all have green followers.
Link Posted: 1/17/2006 6:03:19 PM EST
same problem here little CLP on the bolt catch and pin works like a charm now
Link Posted: 1/17/2006 6:16:53 PM EST

Originally Posted By Carhlr:
same problem here little CLP on the bolt catch and pin works like a charm now

Thanks to all who replyed.
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