ive just had a look at my gun and noticed that the barrel was a bit wobbaly.now that ive sorted it would that sort out my accuracy issues
It should certainly help!
Yeah, IIRC, removing the inner barrel on an MP40 is destructive...
Chaos, you implied that you'd need to remove the barrel from the hop. It's been a while since I looked at the guide, but I thought the hop had to be cut to get the inner barrel out...
you will also be able to look down the barrel while adjusting the hop unit to see if the nub is sitting correctly 
Take apart the 2 halfs of the gun as if you wanted to change the battery. Forget about the bottom half.
From memory:
- unscrew the muzzle nut at the very front of the gun and slip the front sight assembly off the front of the barrel.
- unscrew the big massive nut that retains the front sling mount. Slide that off the front of the barrel.
- you will see another cross head screw underneath where the nut was. Undo this as well, though I cant remember if its neccesary to undo this one to access the hop. It might not be.
- look down the magazine well. You'll see two cross head screws either side of the BB feed tube. Undo these. The plastic magazine well lining should slide out down through the magwell, that is this thing and it is very fragile so be gentle:
- there are two screws on the outside of the gun at either side going slightly upwards into the side of the gun. These are around about the magwell area. You need to undo these.
Now PUSH the the hop assembly out from behind towards the front of the gun.
Because your not familiar with disassembly DO NOT PULL the barrel from the front incase youve missed a step, as you might pull your barrel off and wreck it all.
If all is well you will have your barrel and the hop block in your hands.
- to remove the hop unit and barrel from the hop "block", simply undo the two crosshead screws at either side of the hop unit that go down into the hop block. Slide the hop unit and inner barrel off and out of the outer barrel.
Regarding shops being OK. I got my mid caps from ehobby asia. Have bought stuff from Tokyo Model, Redwolf and eBay banned. All been OK.
Sometimes you just need to suck it and see.
AGM MP40 - AGM STG44 - CYMA Thompson M1A1 - WE P08 4 inch - Marushin M1 Carbine GBB - AGM Sten MkII
Not really but....
If you hammer out the pin that holds the left hand stock arm to the folding mechanism and open that up, you can put a big O ring on over the whole thing and it tightens up the opening and closing action a bit.
It still wobbles about when extended though.
I wish they made those parts of the gun from steel, as real MP40s where usually fired with the stock extended 
AGM MP40 - AGM STG44 - CYMA Thompson M1A1 - WE P08 4 inch - Marushin M1 Carbine GBB - AGM Sten MkII
just a quick question,is there any shop that sells the king arms magazines individually.
Warren of ShootNScoot was selling them individually, viewtopic.php?f=17&t=10025 I don't know if he's still got any as this was a year ago
Knock the pin out on the locking switch at the grip of the gun and that'll release the button, the spring and the back plate of that assembly. You can then take off the whole folding stock. The butt plate can then be unscrewed giving a bolt and a pin from each arm of the stock. That's as far as I bothered to strip mine down.
Stu - the connector is the small type by default
Well, the instructions that come with the mag say to spray silicon in them.
The spray you mention sounds right. Personally I got a can of silicon grease from maplin. http://www.maplin.co.uk/multi-purpose-s ... ease-29006
I've found the King Arms magazines to be picky with the BBs that they will work with because they are double stackers (BBs align side by side and diagonally in the feed tube).
For instance - a dodgy first run of bio BBs from AW wouldnt feed in mine, but fed fine in Hi Caps and Lo Caps. Supposedly that batch of BBs had been overpolished, making them a bawhair smaller than they should have been and this caused the BBS to jam side by side in the magazine.
See the next time your mags dont feed? Take it out of the gun and look into the feed hole and if you can see 2 BBs jammed side by side then that might be your problem. Try a different brand of BBs in them.
AGM MP40 - AGM STG44 - CYMA Thompson M1A1 - WE P08 4 inch - Marushin M1 Carbine GBB - AGM Sten MkII
Ah, yes I had the same problem with some midcaps in an M4 years ago. Excel .25g bbs jammed; Excel .20g bbs were fine.
For instance - a dodgy first run of bio BBs from AW wouldnt feed in mine, but fed fine in Hi Caps and Lo Caps. Supposedly that batch of BBs had been overpolished, making them a bawhair smaller than they should have been and this caused the BBS to jam side by side in the magazine.
That's exactly the problem I had with mine. Their latest "premium" bios have mostly been fine in my MP40 mags (used in a Sten, but the same mags). I had more problems with the .25s than the .2s.
Something I've been toying with doing is inserting a thin strip of plastic into one side of the channel to reduce its width. It would slightly reduce the capacity, but should also make the BBs stack better.
Hmm... so what's your question, exactly? You're right, the KA ones are problematical, and that's one reason I have never used them. Any mag that requires a sharp bang to get it in the gun doesn't sound good to me. I've never had an issue with the 50-round mags - you just need a few of them, that's all. I skirmish at open days with at least 6 mags, and I never feel outgunned. You just need to change the way you play. Only fire in very short bursts - after all, it only takes one BB to get a kill, not 75.
You've got nothing to ein, zwei, drei, vier
Hmm... so what's your question, exactly? You're right, the KA ones are problematical, and that's one reason I have never used them. Any mag that requires a sharp bang to get it in the gun doesn't sound good to me. I've never had an issue with the 50-round mags - you just need a few of them, that's all. I skirmish at open days with at least 6 mags, and I never feel outgunned. You just need to change the way you play. Only fire in very short bursts - after all, it only takes one BB to get a kill, not 75.
I totally agree,I've only ever used the 50 round mags,part of the fun having to mag change in the middle of a firefight,and "don't shoot until you can see the whites of their eyes"
I find these work in my mags:
http://www.airsoftworld.net/bb-s-and-ot ... white.html
PLEASE NOTE: This batch of BioSphere® 0.20g have been precision manufactured at 5.95mm instead of the standard 5.92mm.
Whether or not that 0.03mm difference actually helps, I found these BBs work for me. YMMV
Something else I just thought of:
Don't fill them all the way. I usually fill one of the pistol mag size speed loaders and use just that many BBs in each mag. It works out around 90-100, and leaves a bit of leeway.
