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Posted: 7/30/2004 1:29:28 PM EDT
| to the rear on an empty mag. I have tried it with different mags so thats not the problem. Any ideas. It is a BM lower |
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The bolt holt-open is one of the faster wearing parts in an AR; especially if you just press the paddle while the bolt's retracted. I always like bringing my handle back to let the hold-open retract first (or to press it down) I take it you didn't build your lower.. now's a good time to get acquainted; you'll really appreciate the understanding later. Anyhow, replacing the BHO isn't expensive; grab it from Georgia Precision, and you can use their "light orders" shipping for really good savings. Edit: So you can gauge wear, here's mine: 
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The bolt holdopen wears fast? Gee, the piece on my 35 year old class 3d SP1 carbine is still doing fine. I'll keep an eye on it though Guess I do need to watch out for the more recent units on the aftermarket lowers I've got (including the Bushie) I know the hold open that DPMS put on at the factory was totally out of spec, and I had to replace it out of the box, but I wouldn't have thought this would be a problem w/a Bushmaster unit. Is it possible that the holdopen slot in the lower is gunked up w/ something? That might put enough extra resistance into the operation of the unit to keep the mag follower from pushing it up. 
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