My M4 SLAMFIRED!

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Re: My M4 SLAMFIRED!

Postby Rebel Pariah » Wed Aug 01, 2012 12:34 am

JTNieman wrote:
Erie quiet wrote:on the topic of slamfire...

is there anything that can be done to realistically prevent a discharge when releasing the bolt?
( just so there's no confusion :awesome: )

similar to how some firearms have a spring on the firing pin... ( can this be done to an ar-15?)

the idea is slightly worrysome, though I don't know how much I should be concerned with it...

I don't want to fire any other firearms inside my house :vmad:

There's a reason they make go gauges, no-go gauges, and snap caps. If you're following the rules of common sense and safety and not putting live rounds into your gun except when it's pointed down range at a target, then you shouldn't fuck up.

ETA: Then again, I should think about who I'm talking to...


I'm only really familiar with the mosin nagant go-nogo gauge, can you link or guide me to some info so that I may edumacate myself?

"not putting live rounds into your gun except when it's pointed down range at a target" --- home defense? 8-)


"ETA: Then again, I should think about who I'm talking to..."
hardy-har-har , because nobody else has made that joke in the past 2 years :roll:
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Re: My M4 SLAMFIRED!

Postby Trebor » Wed Aug 01, 2012 8:34 am

With a slamfire when loading I'd always suspect the ammo.

The AR has a free floating firing pin and will dimple the primer when loading. If you have so-called "soft" (overly sensitive) primers, or a primer that is slightly higher than it should be, that can lead to a slamfire.

Do a little Googling and see if the ammo you used is known for those issues or not. If it is known to be an issue, try different ammo.

Also check the firing pin protrusion or have a gunsmith famaliier with the AR check it for you.
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Re: My M4 SLAMFIRED!

Postby JTNieman » Wed Aug 01, 2012 8:53 am

Erie quiet wrote:"not putting live rounds into your gun except when it's pointed down range at a target" --- home defense? 8-)

Yes, people can be targets too.

Erie quiet wrote:"ETA: Then again, I should think about who I'm talking to..."
hardy-har-har , because nobody else has made that joke in the past 2 years :roll:
Then stop bringing it up all the time and let people forget. :roll:
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Re: My M4 SLAMFIRED!

Postby elricfate » Wed Aug 01, 2012 9:06 am

Erie quiet wrote:I'm only really familiar with the mosin nagant go-nogo gauge, can you link or guide me to some info so that I may edumacate myself?



http://www.okiegauges.com/
http://www.amazon.com/Mosin-Nagant-Head ... B0088AESY8
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Re: My M4 SLAMFIRED!

Postby CipherNameRaVeN » Thu Aug 02, 2012 7:55 am

My M4 felt so light when I stripped it naked. Eotech, magnifier, AFG, light, sling... It looked and felt like a toy when I put it in the box.

It is now on the back of a UPS truck. I wish to see it back soon. I wonder how long does Colt take for service...
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Re: My M4 SLAMFIRED!

Postby JTNieman » Thu Aug 02, 2012 12:31 pm

CipherNameRaVeN wrote:My M4 felt so light when I stripped it naked. Eotech, magnifier, AFG, light, sling... It looked and felt like a toy when I put it in the box.

It is now on the back of a UPS truck. I wish to see it back soon. I wonder how long does Colt take for service...

Make sure you update with the resolution. I'm curious.
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Re: My M4 SLAMFIRED!

Postby UndeadInfidel » Thu Aug 02, 2012 12:34 pm

JTNieman wrote:
CipherNameRaVeN wrote:My M4 felt so light when I stripped it naked. Eotech, magnifier, AFG, light, sling... It looked and felt like a toy when I put it in the box.

It is now on the back of a UPS truck. I wish to see it back soon. I wonder how long does Colt take for service...

Make sure you update with the resolution. I'm curious.


Same here.

When I saw it was going back to Colt, I had my concerns that they'd just send it back "fixed" without full explanation of the problem.
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Re: My M4 SLAMFIRED!

Postby CipherNameRaVeN » Thu Aug 02, 2012 1:44 pm

I am also curious what they are going to do.
Even if they can not replicate the problem, I would assume that the right thing to do would be to at least replace the BCG.
I got the notification that my rifle already arrived to Colt. Now, it's just a waiting game. I don't expect to see it back for at least 1-2 months. :roll:
I will definitely update this thread when I get it back.
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Re: My M4 SLAMFIRED!

Postby AK47Heaven » Mon Aug 06, 2012 4:10 am

JTNieman wrote:
Erie quiet wrote:on the topic of slamfire...

is there anything that can be done to realistically prevent a discharge when releasing the bolt?
( just so there's no confusion :awesome: )

similar to how some firearms have a spring on the firing pin... ( can this be done to an ar-15?)

the idea is slightly worrysome, though I don't know how much I should be concerned with it...

I don't want to fire any other firearms inside my house :vmad:

There's a reason they make go gauges, no-go gauges, and snap caps. If you're following the rules of common sense and safety and not putting live rounds into your gun except when it's pointed down range at a target, then you shouldn't fuck up.

ETA: Then again, I should think about who I'm talking to...



What about if you are a CCW holder, I generally load my firearm before I leave the house and unload it when when I get home after I lock up the house.I know AK and AR pins free float, but AFAIK most pistols do not.Could a slamfire happen with a Glock?What about a pump action shotgun?
Last edited by AK47Heaven on Tue Aug 07, 2012 4:41 am, edited 1 time in total.
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Re: My M4 SLAMFIRED!

Postby Doctorr Fabulous » Mon Aug 06, 2012 6:54 am

Do you unload, or keep it loaded? If it happens with a pump shotgun, you pobably combined cheap mmo with soft primers with an out of spec firing pin. The Glock should be safe, just don't unload and clear a ridiculous number of times or use suspect ammo.

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Re: My M4 SLAMFIRED!

Postby AK47Heaven » Mon Aug 06, 2012 7:09 am

Doc Torr wrote:Do you unload, or keep it loaded? If it happens with a pump shotgun, you pobably combined cheap mmo with soft primers with an out of spec firing pin. The Glock should be safe, just don't unload and clear a ridiculous number of times or use suspect ammo.

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I generally get home, lock up my house, take my gun off and take the round out of the chamber, and then put the full magazine back in and leave it in Condition 3 on a counter or table somewhere.There are never children in my home (brothers moved to diff. state), but I still don't feel comfortable having a loaded firearm that is not in my direct possession because I still have friends over pretty often that show up unannounced.

I have very good trigger discipline so I don't mind chambering a round inside my house so long as the firing pin is not going to malfunction and cause a legitimate AD.My ammo is all high quality SD or American brass cased target FMJ (even though I'd imagine hard primered steel case would be more difficult to have this type of malfunction with) but yeah I definitely cycle live ammo through my carry gun 1-3 times a day.

What do you think about the Kel Tec P32?I don't really understand it's firing mechanism.I think its DAO hammer fired but it's kind of weird.
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Re: My M4 SLAMFIRED!

Postby MaconCJ7 » Mon Aug 06, 2012 7:23 am

A pistol will never slam fire, assuming it's not broken. A striker fired pistol, like your Glock, has the sear hold the striker back when you load it. Unless the sear is worn from tens of thousands of rounds through it, or something broke, it won't slam fire. A pistol with a hammer has the same thing going on. The sear holds the hammer back, until you pull the trigger.

The reason an AR15, or other floating pin rifle, can slam fire is because the firing pin floats in the carrier. When the bolt slams into position, the firing pin freely floats forward and is known to strike the primer.

The reason you don't want to load/unload the same round in your pistol is because every time you load that round, the bullet can get seated just a little further into the case than the last time. Do this a few times and you can cause over pressure in your chamber and end up getting shrapnel in your face when you pull the trigger. I personally leave my pistol loaded all the time, except for cleaning. There's really no reason to unload it. Locking your door only serves as a warning that someone is coming in.
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Re: My M4 SLAMFIRED!

Postby AK47Heaven » Mon Aug 06, 2012 7:35 am

MaconCJ7 wrote:A pistol will never slam fire, assuming it's not broken. A striker fired pistol, like your Glock, has the sear hold the striker back when you load it. Unless the sear is worn from tens of thousands of rounds through it, or something broke, it won't slam fire. A pistol with a hammer has the same thing going on. The sear holds the hammer back, until you pull the trigger.

The reason an AR15, or other floating pin rifle, can slam fire is because the firing pin floats in the carrier. When the bolt slams into position, the firing pin freely floats forward and is known to strike the primer.

The reason you don't want to load/unload the same round in your pistol is because every time you load that round, the bullet can get seated just a little further into the case than the last time. Do this a few times and you can cause over pressure in your chamber and end up getting shrapnel in your face when you pull the trigger. I personally leave my pistol loaded all the time, except for cleaning. There's really no reason to unload it. Locking your door only serves as a warning that someone is coming in.


That last part is definitely good to know, I didn't realize that could happen.Guess I'll be leaving it loaded from here on out then.Thanks.
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Re: My M4 SLAMFIRED!

Postby UndeadInfidel » Mon Aug 06, 2012 12:47 pm

Just follow the four weapons safety rules and don't let the slamfire bogeyman keep you up at night.
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Re: My M4 SLAMFIRED!

Postby Czechnology » Mon Aug 06, 2012 3:10 pm

UndeadInfidel wrote:Just follow the four weapons safety rules and don't let the slamfire bogeyman keep you up at night.


Bingo. If it DOES happen, as long as you're doing your part correctly, nobody will get hurt.
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Re: Re: My M4 SLAMFIRED!

Postby nimdabew » Mon Aug 06, 2012 6:25 pm

AK47Heaven wrote:That last part is definitely good to know, I didn't realize that could happen.Guess I'll be leaving it loaded from here on out then.Thanks.

The primer compound in the round could also unseat and not fire if the same round gets chambered multiple times. The setback usually happens between 2-5 chambering, but usually stays about where it is unless you do it hundreds of times over and over again.

Know your immediate action drills and you should be ok if your hand gun doesn't turn into a hand grenade.

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Re: My M4 SLAMFIRED!

Postby AK47Heaven » Sat Aug 11, 2012 6:24 pm

nimdabew wrote:
AK47Heaven wrote:That last part is definitely good to know, I didn't realize that could happen.Guess I'll be leaving it loaded from here on out then.Thanks.

The primer compound in the round could also unseat and not fire if the same round gets chambered multiple times. The setback usually happens between 2-5 chambering, but usually stays about where it is unless you do it hundreds of times over and over again.

Know your immediate action drills and you should be ok if your hand gun doesn't turn into a hand grenade.

shpadoinkle[/tapatalk]


True, but still it would be pretty stupid to spend so much on a new Glock,top line SD ammo,a gun belt,a good holster,a CCW, and the time and effort to carry 24/7 and then risk fucking up my bullets by cycling them too much, so I've decided to just leave it loaded like Macon does.I inspected all the rounds in my magazines and one of them, the one I had used as my chambered round, seemed to be seated in the case maybe a millimeter further than the others so I tossed it out.

It just sucks because now I can't look at my baby anymore because it's always in it's holster :gonk:
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Re: My M4 SLAMFIRED!

Postby JTNieman » Sat Aug 11, 2012 6:31 pm

AK47Heaven wrote:It just sucks because now I can't look at my baby anymore because it's always in it's holster :gonk:

That's why you buy two. Most people say it's because 2 is 1 and 1 is none, and that you can always stand to have a Plan B, or that when you take a training class (you do train, right?) you have a backup gun in case your primary goes down, and you can continue to stay on the line and learn.

But really we all just have backups because we can leave the primary in the holster and still fingerbang and stroke and drool on the backup. :rofl:
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Re: My M4 SLAMFIRED!

Postby AK47Heaven » Sat Aug 11, 2012 6:42 pm

JTNieman wrote:
AK47Heaven wrote:It just sucks because now I can't look at my baby anymore because it's always in it's holster :gonk:

That's why you buy two. Most people say it's because 2 is 1 and 1 is none, and that you can always stand to have a Plan B, or that when you take a training class (you do train, right?) you have a backup gun in case your primary goes down, and you can continue to stay on the line and learn.

But really we all just have backups because we can leave the primary in the holster and still fingerbang and stroke and drool on the backup. :rofl:



I don't train,no. :oops:

Hopefully I will be able to attend a couple classes this year, and there are a couple decent schools in state.

I now understand the reasoning of 2 is 1.....the answer is clearly MOAR GLOCKS. 8-)
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Re: My M4 SLAMFIRED!

Postby MaconCJ7 » Sat Aug 11, 2012 9:00 pm

You don't have to pay someone to get some good training in. I recommend classes, but there are some things you can do at home that will help you enjoy your class time that much more.

Drawing your weapon. Sounds like a simple thing, but if you normal carry concealed, but only practice at the range with a OC holster, you're cheating yourself.

Speed reloads. Teach yourself to be good at it. It won't help you shoot any better, but it will aid in muscle memory.

Weak side shooting. Too many of us don't practice that enough, if at all. A level 1 course shouldn't have you doing that much, if at all, but it doesn't negate the need for it.

Go to the range. Shooting is a perishable skill. Go as often as you can afford to go. If you're serious about it, you may have to change up your lifestyle a little bit to accommodate the hobby. I'm not kidding. If you go to the range once a year, you're likely to be another statistic if you are ever in the right place at the wrong time. I hope that day never comes, but if it does, you'll be better served to be ready than to just be armed.
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Re: My M4 SLAMFIRED!

Postby Rebel Pariah » Sat Aug 11, 2012 10:52 pm

so... are there any common mods to a ar-15 BCG to use a spring to keep the firing pin retracted normally?..

or am I just being a big baby and letting the slamfire bogeyman keep me up at night?
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Re: My M4 SLAMFIRED!

Postby Dave_M » Sat Aug 11, 2012 10:57 pm

Erie quiet wrote:so... are there any common mods to a ar-15 BCG to use a spring to keep the firing pin retracted normally?..

or am I just being a big baby and letting the slamfire bogeyman keep me up at night?


You don't need to worry about it.
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Re: My M4 SLAMFIRED!

Postby Aikibiker » Sat Aug 11, 2012 11:56 pm

I am interested in the results too.
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Re: My M4 SLAMFIRED!

Postby Rebel Pariah » Sun Aug 12, 2012 12:32 am

Dave_M wrote:
Erie quiet wrote:so... are there any common mods to a ar-15 BCG to use a spring to keep the firing pin retracted normally?..

or am I just being a big baby and letting the slamfire bogeyman keep me up at night?


You don't need to worry about it.


ok, accepted that its not a big deal....

but it does seem odd that the ar-15 would not have had a spring included on the firing pin...
wouldn't be hard at all..
or am I missing something?...
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