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There have been 105 items by MindWarrior (Search limited from 01-September 93)
I think that This tank is a lot sturdier than the real thing, meaning that higher pressures could be made and may make it non-war legal.
Real 2k tanks don't have one, so why should this? You would just not plug whatever pump you are using.
EDIT: I'll say right now that Hot glue is NOT a good sealant, I suggest that some more super glue to be used, or plumbers goop over the hot glue to ensure that no air escapes.
The bike pump
Product description: 6063 aluminum barrel with two tone T handle for better grip. 7" alloy barrel with dual action pumping for higher efficiency. Reversible Schrader/Presta thumblock. 120 psi.
I was wondering if there are any specific brass fittings that can be used on this pump for 1/4 or 3/16 ID vinyl tubing?
EDIT: Sorry, Meant 1/4 Outer diamter and 1/8 Inner diameter.
EDIT: For what SGnerf said above me, you could also reinforce your boltsled to prevent bending, I've seen some people use pieces from a coat hanger or Carbon fiber to reinforce them.
Pics (taken from RyanMc#s rearloading AT2K Thread:
Its the center gear between the barrel stubs with a wavy-like pattern.
Have you tried using dual action pumps? Should cut your number of pumps down quite a bit a, You can definitely fit a pump like that in an At3K.
The AT3K can easily fit a small bladder in the rear cylindrical "stock" on the back of the gun. I've done it to one of mine. A cut down RF20 or Magstrike bladder will work, but you must band it heavily or you won't get very good ranges, 70' at best.
To make sure the air doesn't leak out all at once, you'll have to limit it somehow or put a valve in between the tank and bladder. The RF20 / Magstrike trigger works. I wanted it to refill "automatically" so I plugged the air output on the bladder with epoxy, and then poked a needle through it before it hardened. The result was an airtank that refilled in about 2-3 seconds, and the cool part is the liquid gauge shows when it is full.
Be aware that you won't be able to get all six shots off unless you lengthen the back stock somehow. I glued two AT3K stocks together to lengthen the chamber and put an entire RF20 bladder in there. I can hold 9 shots now but it takes like 50 pumps.