How do you remove the gun barrel and take the BB unit apart on a HL tank and upgrade the power? Getting into the turret is easy but my gun mantlet appeared to be stuck onto the BB unit and wouldn't move after removing the two screws either side of the breech on my Tiger 1. Should it come free with a bit of "persuasion" or is it likely to have been glued there? My BB no longer works properly after installing the barrel extension and I suspect the inner barrel is not lined up correctly with the o-ring on the BB unit.

It doesn't make much sense to me to lengthen the outter barrel and not the inner one. As soon as the round leaves the inner its going to move and the likelyhood of it hitting the muzzle brake increases greatly.

Buy yourself an airsoft barrel, even a used one from a stock gun, say 6.08mm and resize it appropriately. This will result in better accuracy and more velocity.

The "search" feature is your friend. Plenty of information on this right here. Good Luck!

It is possible to lenghten the outer barrel only, but you have to make the inner bore of the muzzle brake a bit larger to avoid the BB getting stuck into it when shooting.

Both my Tigers and my Super Pershing wound up as non shooters because of adding the gun tube extension and lengthening the gun tube.
How do I do this? Do I just need the brass tube the length of the tank gun and what do you mean by resizing except for cutting to exact legth? Next, checking Airsoft site, I see no section for parts, so where do I look for different sizes? There is supposed to be a better BB out there, even some biodegradable, but haven't seen any ads.

If I just open the the muzzle brake hole and use the existing brass tube, how does it sit against the O ring and what's the procedure for seating it? Never messed with the guns before and would like to get them shooting again. My M-41 never did shoot well at all....kinda pooped it out enough the dribble out the muzzle.

Would appreciate your help and advice.
thanx
Bill

Hi Bill, the length of the extension you added to the outter barrel is the amount you want to add to the new inner barrel. You can do an internet search for people selling their original 6.08mm airsoft barrels or buy the tightbore 6.03 and 6.04mm barrels. The 6.08mm will be more tolerant to dirt and mis-shapen bbs then the others at the cost of a few fps in velocity.

If you buy a long enough barrel, you can cut it down into two, maybe 3 barrels for the tanks. The part that's cut, smooth and chamfer the bore. It's easily secured inside the gun's breech up against the bushing with the black CA glue. It has a little give to it. The smaller inner diameter of the new barrel provides more surface area to keep the rubber bushing in place. I have yet to lose one or have it come out of place when using an airsoft barrel.

The stock Pershing inner airsoft barrel is 174mm. Corrected length should be 207mm.

The stock Tiger inner airsoft barrel is 212mm. Corrected length should be 250mm. (These are my measurements using brass to lengthen the outter barrel, the prefabricated extensions may be slightly different)

The HL Panther inner airsoft barrel is 175mm. Corrected length should be 238mm.

I have not completed conversions for the Walker Bulldog (Correct length for outter barrel with muzzle brake is 203mm) and various models of the PZIII yet.

James, I have found the right barrels on Ebay and should win them by tomorrow. Then I'll start to see if I can fix the guns. I'd like to get the super Pershing shooting.
Question on Tam sprockets. I'm going to get another M-26 and do it as an M-26A1 (as soon as I find the modified gun). The T-84 tracks will be ready next month and the question came up about Tamiya sprockets fitting the HL tanks....otherwise the tracks will not run as the HL sprockets won't line up right. In Sept the T-81 tracks will be available, so I will set up my super and maybe my M-26 with the correct WW II track. May even do another as a cold war track with rubber T-84 tracks.

Appreciate any info on the sprockets.

tanks

Bill

I don't have a Tamiya Pershing so I cannot comment accurately. I do remember someone mentioning that they work if a little machining is done. Maybe they'll chime in again.

Have tried to find black CA cement; but nobody here has ever heard of it. Does it have a brand name; other ID...who has it???

Bill

It's IC-2000 tire glue.

Went to hobbytown today and noticed that they sell black CA. Maybe not the same stuff.

thanks for the tips and info, guys, maybe I can get these guns shooting again.


Bill