M4 stock mound broken

[toxicnos]

Hi, I have a King Arms M4 CQB-R and the part where the stock screws in has a crack in the treading. This makes the stock come loose with regular use. Do they make a replacement piece for this part?

Thanks,
Lucas

[Aper]

Kinda hard to tell what you're talking about, but pictures would help a lot.

If you're talking about the threads where you screw in the buffer tube for the stock, well you'll definately need a new lower receiver unless you find a ghetto way to fix that ''crack''.

[Hectic]

The rear of the lower is what he is talking about. It's gonna be hard to repair the crack, you could build it up on the outside with some 2 part epoxy, you may be able to run a bead of weld over the crack. Best bet would be to source a receiver depending is its plastic or metal.

[BobbyDangerous]

The shell of the gearbox is broken or the buffer tube?

sounds like a new gearbox shell

[Danke]

It's a broken lower receiver. Common boo-boo.

[BobbyDangerous]

Washers?

[toxicnos]

Thanks guys for your reply. You guys are right, it is the lower receiver.