AR 15 bolt catch problem

[sansone]

maybe this will help

 

[Cosmoline]

The BAD lever is a likely culprit and is easy enough to remove and see if it solves the problem.

It was for mine, for sure. I had the same problem until I removed the BAD lever, then it never happened again.

 

[Tex4426]

According to the chart im within perfect..the lpk was rock river but i replace the bolt catch cuz i broke it with a mil spec but i dont remember the brand

 

[Tex4426]

Im thinking its the buffer tube and it isnt allowing the bcg to come back far enough because i put it on a bushy lower and it wouldnt even eject the shell...or its the lever not engaging fast enough to catch the bolt..im starting with the buffer tube since i already messed it up....also is it normal to hear a ringing sound comming from the buffer tube, when a shots fired theres a ping then it fings for a few seconds

 

[Cosmoline]

Did you remove the BAD lever? It takes a minute or less and costs nothing, so you should start with that.

 

[Tex4426]

Nope lost the tool to do it so gotta get a new one...its a torqs head for whatever reason

 

[joustin]

The chart is useless. The ejection pattern depends on ammo, buffer weight, gas port size and location. The chart doesn't count for that.

Sent from my DROID RAZR using Tapatalk 2

 

[justice06rr]

My roomate's lower has the same issue, but the opposite; the bolt catch engages every round and holds the bolt open even with rounds still left in the mag (essentially making it single fire until you release the bolt). I speculate that its the BAD lever that he has on there.

You should really get that tool to remove the BAD lever and do that first. A trip to the hardware store or Harbor Freight should have the tool you need.

 

[madcratebuilder]

The chart is useless. The ejection pattern depends on ammo, buffer weight, gas port size and location. The chart doesn't count for that.

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I'd call it a general guide, it certainly isn't accurate with all possibilities. Different ammo has a big effect. Guys that shoot cheap ammo are surprised the first time they shoot NATO stuff.

 

[MrCleanOK]

also is it normal to hear a ringing sound comming from the buffer tube

Yes, this is completely normal. As you become more experienced with your rifle, you'll learn to use this sound as an indicator that your rifle is running correctly. If you hear no "sproing", it's time to reload. If you hear an unusual "sproing", you may have had some kind of malfunction and should check before firing again.

 

[Tex4426]

I thought it was...this is just the first time i shot an AR and noticed it...guess i was to busy raking up rounds on the others to care

 

[Tex4426]

Already got my stuff from midway...wasnt expecting it till saturday

 

[toejamm]

Keep us posted.

 

[Tex4426]

Actually getting ready to go out in the back yard and do a couple quick tests

 

[Tex4426]

And it looks like the winner is the buffer tube....after a quick test it locked back after last shot...will double check when i shoot this week but looks good

 

[toejamm]

Good News. Hopefully that does it for you.

A smith made the point to me to thread the receiver extension in, only as far as it takes to hold down the detent, and no further.

Happy shooting............