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Uberg33k March 22nd, 2014 11:56

How In The H-E-Double Hockey Sticks...
 
Do you reinstall the stupid bolt cover on a King Arms M4?

I have the Tanker and it comes with the "functioning bolt catch," but I cannot for the life of me get this damn thing back in and WORKING! I've tried everything. My team mate tried to explain it and I tried it but to no avail. Anyone know the "trick?"

This is the part I'm referring to: http://i57.tinypic.com/so7lvd.jpg

I can get the upper receiver on and off without this piece of turd no problem. But I can't get it on. I've got it together twice but both times it wasn't functioning. Grrrrrr

DustMagnet March 22nd, 2014 12:30

It slips out of its track when you slide the upper on. I've used masking tape on the outside of the upper (port cover open) to hold it in place before.

Sent from my Nexus 5 using Tapatalk

Janus March 22nd, 2014 13:08

There's a few tutorials on YouTube.

Personally, I'd say just throw the fucking thing away. More trouble than it is worth.

Uberg33k March 22nd, 2014 13:52

Quote:

Originally Posted by Janus (Post 1877747)
There's a few tutorials on YouTube.

Personally, I'd say just throw the fucking thing away. More trouble than it is worth.

I couldn't find any on YouTube for some reason. Probably didn't use the correct key words.

I was going to do that but it looks like shit without it. Also my GF wants it there, women like chrome. lol

Stealth March 22nd, 2014 14:00

You have to hook up the spring to the little nub on the plastic track on the receiver. If that's broken, you're already SOL.

If you manage to do that, then the piece that's directly above the spring (in your picture) slides along a groove/track on the plastic upper receiver insert.

The fat tab (top left in your picture) then just slides next to the charging handle.

slowbird March 22nd, 2014 14:23

The Spring on mine snapped while I was trying to re-install it. It is quite the pain.

I left mine off.

Uberg33k March 22nd, 2014 19:12

Quote:

Originally Posted by Stealth (Post 1877754)
You have to hook up the spring to the little nub on the plastic track on the receiver. If that's broken, you're already SOL.

If you manage to do that, then the piece that's directly above the spring (in your picture) slides along a groove/track on the plastic upper receiver insert.

The fat tab (top left in your picture) then just slides next to the charging handle.

Oh I know how it installs. lol It's doing it is a whole other story. As soon as I start to slide the upper on the lower and I have to pull back the charging handle it comes loose. I've tried holding it three different ways and no joy.

lurkingknight March 22nd, 2014 20:01

place 2 recievers together and line them up

align plate to follow the track

begin to slide halves together

when the charging handle hits the bump in the gearbox, pull the receivers back apart, pull the charging handle to open the bolt and to extend it so it can lift over the bump. If you pull out the upper too far the whole bolt plate will just pop out of the charging handle and the track. The trick is to separate them just far enough to get the charging handle to clear the hump in the gearbox.

With your other hand one finger in thumb out holding the bolt cover half open, pull out the bolt plate again and realign it back into the track.

Slide both receivers together and close the bolt. It should work at this point if it's in the track.


You can also squeeze or rock the upper rotationally before you slide it home to line up the pin, I've found that settles the stupid little ping pong paddle clip and the actual bolt release mechanism so it holds the bolt plate. I think sometimes it won't work because it's being pushed down by the upper so rocking the upper a bit will free the clip up.


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