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steel pen gun

Unread postPosted: Sun Oct 26, 2008 9:33 pm
Author: to_live
This is my first attempt at a barrel sealing piston or any sort of piston for that matter. I am using a bb as a piston not to sure yet whether it will work? The body of the pen gun is made from 6.3mm id steel the wall thickness is roughly 1.5mm, and the barrel is made from an old pellet gun barrel rouhgly 3.5mm, I am using a shrader to fill the pen gun and as the trigger. Nothing has been glued yet I am waiting to go down the street to get some araldite. Any suggestions?

Unread postPosted: Sun Oct 26, 2008 9:43 pm
Author: jook13
Its looking pretty sweet so far. let us know how it works when all is said and done. or better yet, get some video of it working...

Unread postPosted: Sun Oct 26, 2008 10:49 pm
Author: jor2daje
Have you got anything to help make a good seal between the barrel and the airsoft bb. Other than that looks pretty cool.

Unread postPosted: Sun Oct 26, 2008 11:37 pm
Author: to_live
i am going to put a piece of neoprene between the bb and the barrel didnt cut it yet because i would probably lose it.

Re: steel pen gun

Unread postPosted: Mon Oct 27, 2008 12:49 am
Author: jackssmirkingrevenge
to_live wrote:the barrel is made from an old pellet gun barrel roughly 3.5mm


What sort of pellet gun is that then?

The gap between the BB and the chamber wall is relatively small but not insignificant, make sure you keep your pilot volume tiny.

Unread postPosted: Mon Oct 27, 2008 4:32 am
Author: to_live
the pellet gun was just a cheap one from a $2 shop before they were banned (i live in australia) i hadnt thought about the pilot volume but thanks i will keep that in mind.