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Posted: 12/28/2015 10:18:13 AM EDT
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So noob mistake. The upper was off and I was cleaning. I dry fired without the upper. What do I need to check for damage? I've read it can crack the lower, but I see no signs of this. Boot catch is still functional....
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Yep, if you did it once, you are fine. Just do not do it 50 times per day. Quoted:
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You're ok... Just don't make a habit of it.. Yep, if you did it once, you are fine. Just do not do it 50 times per day. Yep, kcolg30's got you covered. It's one of those mistakes that can get you when made once, or get you only after it's been made dozens of times. It's a crap shoot. Go down to the Arms Room in just about any branch of the military, and you'll hear GI's with their separated uppers and lowers, cocking that hammer back and letting it fly forward against the lower receiver. Repeating this can stress and crack the lower receiver material surrounding the bolt catch. In some instances it's been known to crack the bolt catch itself. Inspect those two and if you find no damage, drive on. Lesson learned. |
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So noob mistake. The upper was off and I was cleaning. I dry fired without the upper. What do I need to check for damage? I've read it can crack the lower, but I see no signs of this. Boot catch is still functional.... Thanks in advance If you checked it and found to be fine then you GTG. Just don't do it again as repeated dry firing like that will break something. Impala 
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Any chance the lower's integrity was compromised from doing this? Or ks it something that either breaks or doesn't break? yes tiny microfractures in the alloy will forever render your lower inferior to the unmolested crystal lattice metallurgical strength it once had. no seriously, it's fine dude. 
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I'm sure you're fine.... bolt catch breakage is the normal issue but, even then, not super common Yep this is what I thought the major concern is with dry firing with the receiver down. I seen some military types who fire the weapon with the upper off and it seems like at one point the military trained people to do that (someone correct me if I'm wrong here). If your bolt catch is up at any point you run the risk of it breaking since the hammer is hitting it at a odd angle. Even then it would be rare and doing it once or twice wouldn't hurt. |
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In USMC boot camp we spent an entire week (grass week) doing nothing BUT dry firing our M16s. Boot camp M16's get dry-fired more than they actually shoot actual bullets.
When cleaning we'd also hear a lot of people dry firing with the weapon opened up and the hammer smacking the lower. Nobody ever said BOO about it to us (although they probably should of - I think that IS bad). Point being, with all that abuse I never heard any recruit raise their hand, request permission to speak, and say "Sir Recruit Sixpack's hammer just broke in half, and the firing pin shattered, and the receiver cracked!" Obviously with some of the more sensitive trigger groups out there they are probably not as durable as what they are giving Recruit Sixpack, but when I get mine built with mil-spec trigger I WILL dry fire the sh*t out of it (but not with the weapon opened up). It's a design based on something they give out to our best and brightest and also our worst and dumbest. It's tougher than you think. |
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