[CQB_Sniper]

Hi everyone,

I'm new to fixing gearboxes, and I've been reading up and watching as many videos as I can. But I've got a little issue here that I've searched and searched and can't seem to find a fix.

My M4 mis-feeds every other shot. I've gone through the process of elimination and tested the following:

-Mag catch - I'm able to hold the gun upside down and shoot - still misfires. Also, I can hold it by the mag, and shake it without it coming loose.

-Tried different hop up units in the gun - still mis-feeds

- tried the hopup with a drop in GB and - no feeding issues.

It appears that there's an issue with the tappet plate, because when i cycle the gun with the upper receiver off, occasionally, the air nozzle is extended further than it's normal position. This is why (I'm assuming) there's a feeding issue, as the nozzle is extended further - preventing the next BB to be chambered.

Now, when I take the GB shell apart, the tappet plate seems to be working normally. I can slide it back and forth, and there seems to be no issues with the track is rests in. I'm thinking it COULD be due to the cut off lever, as when I cycle the gears, it engages upon full rotation.

Please advise?