KJW M4 Can't break down.

[Jamroxorz]

Hey! So I have a KJW M4 and it was working fine until I shot it and it didn't shoot. I figured something's up in the bolt or something, so I pop the back take down pin and the gun won't come apart. From what it looks like it seems that there's something extending into the buffer tube. I opened the other end of the buffer tube and removed the spring and the guide, and it's still jammed. I made sure the bolt was also in the most forward position. I removed the front take down pin, and still the gun won't split in two. I've searched and searched and can't find anything about this X___x. Anybody know what's up? Thanks!

[ThunderCactus]

Did you look down the tube with a flashlight?

[Jamroxorz]

Indeed, but I did not see any debris or anything that could look like it's out of place, unless whatever is jamming it is cylindrical? I also looked at the exploded diagram, could not make out anything that would block it there..

[GBBR]

This type of problem is common with all GBBR AR Platforms except for daytona

If you are going on the 28th I can fix it on the feild, OR msg me on FB

[MaybeStopCalling]

You'll have to disassemble the receiver extension and remove it. Not terribly bad if you have the right tools. Is your bolt carrier group fully forward and seated?

[Jamroxorz]

I took the buffer tube off. what it turned out to be was there wasn't any lube between the first and second part of the bolt so it jammed there. I loosened it by turning the insides with the alan screw, then gave it a nice lube job, everything works well now.