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New Piston BB Gun

Posted: Sun Mar 16, 2008 6:10 pm
by Sergeant Dotson
I just recently finished this bb gun. It has a piston made of hot glue attached to what is a hammer that strikes the BB in the barrel. I will glue the casing together and give it a new paint job soon but I'm going on a trip so it will be about a week. These pics should explain it all.

Posted: Mon Mar 17, 2008 5:39 am
by Cosmic Muffin
hmmm i like the idea but its been done about 3 times still it shood be good
you just need a loading system

Posted: Mon Mar 17, 2008 6:43 pm
by OuchProgramme
Cosmic Muffin wrote:hmmm i like the idea but its been done about 3 times still it shood be good
you just need a loading system
Gravtiy fed mag :)

Posted: Mon Mar 17, 2008 6:50 pm
by elitesniper
cool, but is that barrel a pen tube? or...

Posted: Tue Mar 18, 2008 3:56 pm
by Sergeant Dotson
No, the barrel is all thread and I am going to cut the barrel and put in a t connector for a gravity fed mag. :D

Posted: Tue Mar 18, 2008 4:29 pm
by ghostman01
looks like jacks semi

Posted: Fri Jun 20, 2008 4:13 am
by Antonio
Its like the blowforward breech system. But I think this one has less turbulance as the path of the air is a straight line. I think your piston parts look a bit too heavy though. I mean u dont wanna loose energy by pushing that piston forward> u want to use it to propel the projectile.

Posted: Fri Jun 20, 2008 6:28 am
by jackssmirkingrevenge
ant wrote:Its like the blowforward breech system. But I think this one has less turbulance as the path of the air is a straight line.
It's pretty much the same thing.

Image

You'll be needing a longer barrel for significant power at compressor pressures though.

Posted: Fri Jun 20, 2008 7:18 am
by Antonio
jackssmirkingrevenge wrote:
It's pretty much

You'll be needing a longer barrel for significant power at compressor pressures though.
Ah k I am sorry, I thought yours had holes at the side op te sliding part.