I have a BM 16" shorty I have had it since 1998 and I haven't ever had any problems with it until this month. now It is jamming on me regularly. THe first time it happened I thought it was because I hadn't cleaned in gun in a while (sometimes I get lazy) so I took it home and cleaned it real well, and this weekend it it was ok for about 150 rounds and then it started jamming up again.
AR jamming
- Thread starter chink
- Start date
Did you totally strip and clean the bolt and clean the gas system? Not just a quick wipe off and tooth brush across the bolt face. These are some points that will cause jamming if they are dirty. Also weak springed and dirty mags and dirty and weak ammo. Also check your spring and spring guide area into the stock for grime or damage.
What exactly is jamming? Is it not feeding? Extracting? Double feeding? Just wondering to try to help more.
What exactly is jamming? Is it not feeding? Extracting? Double feeding? Just wondering to try to help more.
i would have to say the mag. i have had ARs, m1 carbines, and an m1a jam on me. i switched mags and no problems. after inspection of the mags, it was either weak springs(ar and carbine) or bad feed lips(m1a new prod. mag). weird thing is, i've never had an AK jam on me. whats the deal?
jeff
jeff
Failing to extract and so there are issues, because another round is still trying to make its way into the chamber.
In a discussion with a friend this morning, i am thinking it is one or a combination of the following, dirty gun, misalligned gas rings, bad extractor spring, ammo, magazines
althought ammo and magazines seem to work fine on a 20" Oly arms AR-15
In a discussion with a friend this morning, i am thinking it is one or a combination of the following, dirty gun, misalligned gas rings, bad extractor spring, ammo, magazines
althought ammo and magazines seem to work fine on a 20" Oly arms AR-15
Jeff White
New member
Did the ammo work ok in the 16" barrel before?
If it didn't, it's probably ammo. Sounds like your problem is short recoil. Try a different kind of ammo and see if it cycles. Also make sure the hex bolts that hold your carrier key on the carrier are tight and staked in place.
Jeff
If it didn't, it's probably ammo. Sounds like your problem is short recoil. Try a different kind of ammo and see if it cycles. Also make sure the hex bolts that hold your carrier key on the carrier are tight and staked in place.
Jeff
Failing to extract as in case still fully in chamber, next round trying to run it up the barrel? Been there, done that.
Extractor spring may be it, do you use one with the little plastic nubbin in it? Clean your chamber too, do you have the proper M-16 bore brush? I've never used it, is S&B laquered steel case? I intentionally shot my AR until it jammed w/o cleaning using russian steel case, the good news is it took 1500 rounds, the bad is that laquer really builds up in the chamber which is pretty close tolerance. Inspect the extractor for all pieces, replace it and the spring, clean well and blast away. Strip the bolt when you clean, I suppose that if enough crud built up under the extractor fwd of the pivot it could hold the claw out just enough to ride over the case lip.
Yours isn't a mag problem, but on the subject I haven't had any mag problems from any junky looking USGI I might pick up, Colt or Thermold. there was that USA 40rd that the bolt carrier ran into though. My first and last USA exp.
Extractor spring may be it, do you use one with the little plastic nubbin in it? Clean your chamber too, do you have the proper M-16 bore brush? I've never used it, is S&B laquered steel case? I intentionally shot my AR until it jammed w/o cleaning using russian steel case, the good news is it took 1500 rounds, the bad is that laquer really builds up in the chamber which is pretty close tolerance. Inspect the extractor for all pieces, replace it and the spring, clean well and blast away. Strip the bolt when you clean, I suppose that if enough crud built up under the extractor fwd of the pivot it could hold the claw out just enough to ride over the case lip.
Yours isn't a mag problem, but on the subject I haven't had any mag problems from any junky looking USGI I might pick up, Colt or Thermold. there was that USA 40rd that the bolt carrier ran into though. My first and last USA exp.