AR15 not firing

[GOLDEN GUN]

My guess is that the upper and bcg are really dirty and you are not getting full lock up of the bolt.

Pull the bcg, strip it down and give it a good scrubbing and line it back up.. Don't forget to clear the fee dramas and chamber really well

[G3Steve]

Thanks I need to find a place that doesnt sell clips.

Hahaha!

[TJW]

Frangible ammo is the worst reliable ammo you can fire. Even LE Winchester Ranger frangible ammo fails often. We were qualifying yesterday, the guy beside me shooting a 9mm frangible ammo listed above, had 20 failures out of 36 rounds he attempted to fire. I hate frangible, it has problems in 45 acp also. I would suggest going to another range and firing FMJ ammo. If you don't have any problems with FMJ, the problem is the crappy frangible ammo.

[PolishMike]

Hey you guys, I bought a used ar15 a few weeks ago. Its mil spec. A bunch of custom parts.

No - Its not. It cannot be "mil spec" and have "a bunch of custom parts". Your semi auto AR15 is NOT mil spec.

the gun works, As my friend sold it to me, and we have shot the gun a bunch of times before.

I took it to the range today,

I used frangible rounds which are the only rounds allowed there..

I had two clips.
The first two rounds fired fine in the first clip.

Than I put the second clip in, and the rounds did not fire at all.

AR-15s do not use clips. They use magazines. The term is NOT interchangeable and means two very different things.

I tried about 15 different rounds none fired.

the rounds are getting the small firing pin dent on them, so I know nothings broken. What are some causes of this?

Failure to fire causes include:
Too much lube/dirt on firing pin
Incorrect installation of hammer spring
Bad ammo
Missing/broken firing pin

1) Make sure the bolt is going into full battery
2) Make sure the hammer spring is correctly installed
3) Report back

[mofojoe]

Check that custom tactical light on the rail. If that fails you need a custom fore grip. That should take care of the problem.

[waawaaweenie]

My guess is that the upper and bcg are really dirty and you are not getting full lock up of the bolt.

Pull the bcg, strip it down and give it a good scrubbing and line it back up.. Don't forget to clear the fee dramas and chamber really well

fee dramas are not allowed here

may be the issue in this case

[WyGoSlw]

1. Clean the rifle..

2. Take the bolt carrier group apart and check ALL the parts to make sure they are not bent or broken.

3. Use reliable ammo

[GOLDEN GUN]

fee dramas are not allowed here

may be the issue in this case

Goddamnit tere hanges strikes again!

[Bansh88]

Rifle will not fire with more than 4 custom parts. How many is a bunch?

[Jason Singh]

Frangible ammo is the worst reliable ammo you can fire. Even LE Winchester Ranger frangible ammo fails often. We were qualifying yesterday, the guy beside me shooting a 9mm frangible ammo listed above, had 20 failures out of 36 rounds he attempted to fire. I hate frangible, it has problems in 45 acp also. I would suggest going to another range and firing FMJ ammo. If you don't have any problems with FMJ, the problem is the crappy frangible ammo.

Thank you I have been told that over and over again, SO I will get better ammo and try that

[Jason Singh]

No - Its not. It cannot be "mil spec" and have "a bunch of custom parts". Your semi auto AR15 is NOT mil spec.

Sorry to say, IDC if its mil spec. I get what you are saying, Its not "real Mil Spec" but the parts are good enough for me and thousands of others. the Ar is built with "DSA ZM4 Lower. BCM Upper - 16 Inch mid Length barrel 1-8 twist. sure fire MB556K muzzle brake, shadow ops nickel boron BCG, MOE Parts, millet 4-16x50 scope.

AR-15s do not use clips. They use magazines. The term is NOT interchangeable and means two very different things.

Sorry.

Failure to fire causes include:
Too much lube/dirt on firing pin
Incorrect installation of hammer spring
Bad ammo
Missing/broken firing pin

1) Make sure the bolt is going into full battery
2) Make sure the hammer spring is correctly installed
3) Report back

I did clean the rifle, and it was dirty. REALLY DIRTY..
I took out the BCG and took it apart, it was REALLLYYY dirty tooo. The firing pin was mostly black, I lubed it and cleaned it. I took out the bolt and cleaned and lubed it too, I took out all the little pins lubed and cleaned. The bolt was crazy dirty so I think that could be a problem?

I basically took the whole rifle apart, and cleaned it, it was very dirty. SO we will see how it goes, I will try to get to the range today or tomorrow and update you guys.

[GOLDEN GUN]

Sorry to say, IDC if its mil spec. I get what you are saying, Its not "real Mil Spec" but the parts are good enough for me and thousands of others. the Ar is built with "DSA ZM4 Lower. 16 Inch BCM mid Length barrel 1-8 twist. sure fire MB556K muzzle brake, shadow ops nickel boron BCG, MOE Parts, millet 4-16x50 scope.



Sorry.



I did clean the rifle, and it was dirty. REALLY DIRTY..
I took out the BCG and took it apart, it was REALLLYYY dirty tooo. The firing pin was mostly black, I lubed it and cleaned it. I took out the bolt and cleaned and lubed it too, I took out all the little pins lubed and cleaned. The bolt was crazy dirty so I think that could be a problem?

I basically took the whole rifle apart, and cleaned it, it was very dirty. SO we will see how it goes, I will try to get to the range today or tomorrow and update you guys.

I bet it works now

[PolishMike]

Did you check the hammer spring?

[Jason Singh]

Did you check the hammer spring?

Yes I did, but I assumed that was not the problem because the rifle did fire two rounds in the first mag.

Than when I tried to fire the second mag with the next two rounds, it did not fire again. Even once I switched out the mags tried it maybe 10 times never fired.

Also I did not think the hammer spring was the problem because the hammer still drops when I dry fire.

[Jason Singh]

I bet it works now

I hope it does

I will be going tomorrow to the range.