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Posted: 2/22/2010 9:50:34 AM EDT
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I inspected my BCG and noticed the firing pin is bent. I'm going to replace it but is this something to be concerned about? Is it somewhat normal for this to happen? I have yet to read anywhere that people keep spare firing pins? It's a Bushmaster BTW.
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If you close the upper and lower receivers and the hammer is not cocked you'll bend the end of the firing pin.
Don't ask how I know. 
Generally once you do it once you'll never make that mistake again. The only reason to carry a spare firing pin is if you're shooting hot loads and getting primer piercing. That erodes the tip of the firing pin leading to more primer piercing. C97 |
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Quoted: If you close the upper and lower receivers and the hammer is not cocked you'll bend the end of the firing pin. Don't ask how I know. Generally once you do it once you'll never make that mistake again. The only reason to carry a spare firing pin is if you're shooting hot loads and getting primer piercing. That erodes the tip of the firing pin leading to more primer piercing. C97  |
| My brother had a JP trigger kit that the previous owner had mis-timed the disconector in. This lead to double fires. It also caused the firing pin to be bent since it was an un-shrouded carrier. It is fairly easy to bend a firing pin in an un-shrouded carrier but pretty difficult to do it on one that is shrouded. |
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Quoted:
If you close the upper and lower receivers and the hammer is not cocked you'll bend the end of the firing pin. Don't ask how I know.
Generally once you do it once you'll never make that mistake again. The only reason to carry a spare firing pin is if you're shooting hot loads and getting primer piercing. That erodes the tip of the firing pin leading to more primer piercing. C97 I have never heard of this, not to say it isn't true. I have closed the receivers before with an uncocked hammer and did no damage to my firing pin, so I guess you could re-word to say "you could bend the end of the firing pin." OP: I have a few spare firing pins, including one in the grip of my go to gun, haven't had to replace one yet though. |
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I have observed this:
An SP1. A muscle bound agent. A Colt magazine loaded with 31 rounds. Said agent slamming the bottom of the magazine until the top few spot welds broke and the floor plate was bent outward! Rounds spew out of the magazine when he finally gave up... like it was a bullet fountain. Same agent slamming an upper closed on the SP1 with the barrel pointed up. Several impacts occurred... forward hammer to firing pin (in un-shrouded carrier). Me stopping him before he was able to prove a firing pin could be bent this way! Given a bit more time... I think he could have bent one! (The kicker... it was my personally owned Colt 30 rd magazine. We only had 20s in the inventory and we had a "special problem" so I let him use it. My mistake!) |
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Bent firing pins? I've never seen one in the Military or civilian world. Are you sure you guys don't mean the Firing Pin RETAINING PIN ? It is the firing pin. And if it can be damaged, I will be one to find out.  Where is the pin bent, and is your BCG unshrouded? |
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Quoted: Quoted: Quoted: Bent firing pins? I've never seen one in the Military or civilian world. Are you sure you guys don't mean the Firing Pin RETAINING PIN ? It is the firing pin. And if it can be damaged, I will be one to find out. Where is the pin bent, and is your BCG unshrouded? I'm not sure what unshrouded is. The pin is bent towards the rear. I m not sure if you can tell in this picture.  |
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Quoted: http://img.photobucket.com/albums/v408/gotm4/carriers.jpg The far left is unshrouded it leaves the base of the pin uncovered Gotcha. It is shrouded. |
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http://img.photobucket.com/albums/v408/gotm4/carriers.jpg The far left is unshrouded it leaves the base of the pin uncovered Gotcha. It is shrouded. Well that kills my theory. Shrouded BCG's should provide more protection for the pin against something like hitting a uncocked hammer when closing up the receivers, dont know what would cause it sorry, |
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Thanks for giving it a shot though.  I'll just order another and see what happens. I only have around 500 rounds through this rifle. DAMN... I can get the pin for $7 but $8 to ship...  http://www.del-ton.com/AR_15_Firing_Pin_p/bc1006.htm Del ton lets you select usps shipping should be under $1shipping and $5.95 for the pin |
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Quoted: Thank you much sir! Quoted: Thanks for giving it a shot though. I'll just order another and see what happens. I only have around 500 rounds through this rifle. DAMN... I can get the pin for $7 but $8 to ship... http://www.del-ton.com/AR_15_Firing_Pin_p/bc1006.htm Del ton lets you select usps shipping should be under $1shipping and $5.95 for the pin  |
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Support between the jaws of a vice, high side up and use a 2# ball peen to straighten it. It will be fine. To set finish nails. Never seen that before. You're good 458 Nope, this isn't a part that should be repaired. If it's damaged, replace it. May be that I need to use more bold lettering 458 |
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