Thumbhole Foregrip

Picatinny version Requires x2 M4 x 30mm socket head bolts & nuts
Rival version requires x2 M3 x 25mm socket head bolts
Standard Nerf rail variation only requires x1 M3 x 7mm bolt and nut but have added a second hole to make sure it secures more firmly

10/24/20
- updated picatinny profile with reliefs for a clamping design

1/22/20
- added nerf rail variation

4/19/19
- added a variation for the caliburn that replaces the standard grip rather than mounting to it, should help relieve stress on the stroke (untested)

11/15/18
- added variation for rival rails

5/12/18
- added M4 variation and changed nut orientation for easier printing

6/7/18
- removed the M3 version due to issues with shearing
- reworked the M4 version to avoid issues with shearing along layer lines

10/9/18
- added .stp file by request