I am selling a slightly used AirSystem shotgun M4 magazine adapter. The reason I am selling it, is because I recently a salamander M4 adapter and I no longer need this. It is plastic molded (NOT 3D printed) the ONLY thing that is 3d printed is the mage release. This sits flush in my Tokyo Marui Breacher with no wiggle what so ever. It feeds very well! NO TRADES! $90 shipped!