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Will this Loading mechanism work?

Unread postPosted: Mon Jan 23, 2012 4:57 pm
Author: pyromane93
Hey Guys
i've made a semi-auto BB Airgun with a qev and slidevalve..
For now i'm looking for some Ideas for the semi-auto loading
i drawed a picture of the mechanism, will this work?


When the Air pushes out of the qev, the Piston will be pushed forward and fires the BB. this would be every Shot.

Here is the Video of the Gun:


I'm from English is terrible:)

Unread postPosted: Mon Jan 23, 2012 5:18 pm
Author: cammyd32
Good build, its a sturdy looking construction and looks well built.
As for the loading mech what you have proposed seems extraordinarily like the ever so popular tried and proved, blow forward loading mechanism that we are seeing becoming commonplace on this site, especially on small-bore pneumatics, such as your own. :)
I have attempted to find the link to jsr's original thread on the design, which would be quite useful for you. but my skills in using the site search are quite shoddy, so I will leave that honour to someone else, that is if can't find the link myself. :)
And welcome to the forum :D

Unread postPosted: Mon Jan 23, 2012 5:56 pm
Author: Lazyboy
That is a blow forward bolt, all you need now is a spring in the magazine to push the BB's into the barrel and a dent to stop it rolling out the barrel.

Unread postPosted: Mon Jan 23, 2012 6:39 pm
Author: Gun Freak
Why such a huge valve for a tiny barrel?

Unread postPosted: Tue Jan 24, 2012 3:21 am
Author: pyromane93
The qev i'm using is a 3/4" ..i have buyed one from ebay it is 3/8"
i don't know how to make a smaller one like 1/4"