A simple model to hold an AR-15 receiver vertically for marking/engraving on the front of a receiver. Moderately cringe example results in photo. You are on your own for centering. :/
Spacing on the mounting holes are 1.00" with some wiggle room.
I printed it with 3 walls for a bit more meat with the threads.
LBRY Tags: guncad; ar15; receiver; vertical jig