ult chuffing!

[mag88888]

my ult chuffs. thast exacly it. randomly and very often when i pull on the trigger it doesnt shoot but makes a chuff sound. i dont hink that its air coming out somewhere. its from the trigger, im pretty sure. its really pissing me off, i miss shots that i was trying to take. why is this happening?! oh and the bolt used to stick forward and i would have to reset it but i fixed that with shims.

[i_baked_cookies]

take some of the shims out and tighten your field strip screw with an allen wrentch really snug.

[Andrew Cunje]

over tightening your field strip screw will result in rubbing against the top of the valvedue to it is onyl supposed to be finger tight, carful with that.