mossberg masterkey mount WIP

this is a hypothetical master key mount for a mossberg shotgun. using a 500 or 590 would require removing the safety, using a maverick 88 would require drilling and tapping for a scope mount. i haven't mounted one yet. it uses front and rear mounts from a D boys airsoft m203 (about $90) it uses two 4mm flat head screws and nuts to mount the D bous mount to the main mount. it should take 4x 8-40 3/4" screws to mount the mount to the scope mount screw holes. (these have not been verified for exact size and position) two long 6-32 socket head screws are supposed to go in back to add support. i cant member what size screw the front bracket uses. this is beta only, I have no idea how well or if it will work irl. make at your own risk. mounting a shockwave to an m4 would make it a short barreled shotgun. LBRY Tags: masterkey; shockwave; ar