KelTec R50 with A3 aluminum machined folding stock. This is the perfect rig for zombie eradication, 50 rds of 5.7x28, lightweight, no recoil, and hinges open to change mags as if you were in the 1950's or 2050's. Magazine guide added for fast reloads. I have all original parts and box. Comes with two P90 50rd magazines. Red dot sight not included. Less than 50rds fired through it. I am thinking about keeping it myself as I write this description.
Thought about converting to a short barreled rifle but the extra velocity of the 16" barrel is icing on the zombie cake.