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masterdiablo · New Member

thank you for takeing the time to read this.

ok what i want to do is put a .25 barrel. om a crosman 2240 and turn it into a bull pup style rilfe.
what i am un sure of it if i will need to change the breach?
and what valve is the best to use.
i am planning on makeing it a c02 powered with a expansion chamber on it to keep from getting the liq co2 in the valve body.

i have airsmith exp with high end paintball guns and our like to be able to "play around" with the crossman and see what i am able to beef it up to shoot.
i love teh look and feel of a bull pup and it will make it much more easy to back when i go hikeing and bare bones camping.