I needed one to work with a lower that had a full trigger guard. Added a hole for trigger guard and made it 4mm thicker on bottom. The cap and side jig are not remixed I added them for convenience.
1/4 x 3.25 inch
1/4 x 1 inch (fine thread)
V2: added a larger socket whole for the grip and a captive nut for the mag bolt.
Check original file for more info. https://www.thingiverse.com/thing:3351478
Matter hackers PLA