AR locked up

[Deadon]

My AR chambered in 5.45x39 locked up. When I got out of state I installed a slidefire on it. I've put about 2000 rounds down range in about two months. I have too admit they have been pretty hard rounds. It's pretty much full auto fire.

The place I shoot is about 5 miles away. I jump in the truck and go and go and go lol. I haven't cleaned the gun in a while.

Last time I cleaned it I had about 3k rounds through it and it was fine with no issues. So this time when I went to clean it I was a bit shocked that it was locked up. I guess the heat of the slidefire round played a role. Anyway I just sprayed a bunch of wd40 through it just to get the bolt moving. Once it's free I'll use clp like always.
Any other advice to get the bolt free?

[General]

Don't let wd40 dry it leaves a hard residue.

[Deadon]

Don't let wd40 dry it leaves a hard residue.

First time I ever used it. I do plan on a good soaking in CLP after.

I just got the bolt back finally. Now it's stuck on the buffer tube lol. I sprayed more wd in the back of the tube. I may try to remove the buffer tube as a whole.

[Devilmonkey89]

Did you try mortaring it?

[CK_32]

This but not this^


If it's a pin or detent which I've had happen that will just make it worse. But if it's locked because of friction or build up this may help. Also be sure you have a good stock. I've seen many a stocks break because of doing that.

[Deadon]

Just got the buffer tube off. The detent and spring were in the middle of the bolt. I was able to get them out with a screwdriver.

It's just a ton of build up! Going to soak everything in CLP and give the gun a much needed clean. Guess I'll clean it after each use with the slidefire for now on.

[bigbearbear]

Were you using steel case ammo?

[Deadon]

Were you using steel case ammo?

Yeah 5.45x39 mil surplus but what Ive always used.

It's soaking now and looking pretty good again. When I was shooting it last time it got so hot I couldn't hold the fore end lol.