BCM BCMGUNFIGHTER Vertical Grip MOD 3, M-LOK

The BCM Vertical Grip Mod 3 is a medium-sized "sort-of basic grip" for those who aren't into funny angles or hand stops. While it's enhanced in many ways, this is appealing for those who are looking for just a vertical grip. This is the M-LOK version.

This grip is also available for Picatinny rails,

The forward angle increases the rigidity of the forearm while providing a more natural wrist angle. It can be mounted in reverse angle to increase control when grabbing handguard and grip and the flat sides with aggressive texture give better yaw control to the shooter during firing and non-firing manipulations.

Comes with a 1/8" Allen key for tightening the screws.

M-LOK attachment

Fits directly to M-LOK handguards regardless of the brand; M-LOK is a standard that Magpul allows other manufacturers to use.

Does it attach to anything else? Well, maybe:

You'll need two 7 x 12 mm rectangular holes for the recoil mitigation lugs and M-LOK T-nuts, or just one if you make it 7 x 32 mm. The material thickness must be at least 2 mm for the nuts to grab before bottoming out.

The center-spacing of the holes is 20 mm if you make two of them.

If these measurements boggle your mind, it might be easier to just buy a metric caliper instead of converting these. For example, 7 mm is more than 1/4" but less than 9/32". It's a headache.

This should help you get started. If you're confused, choose something else to do while you drink beer. These aren't jobs for amateurs.