Quick and dirty - wanted to add a Capt Slug angled foregrip to the inverted scales (aka Nilin / LN01) nerf blaster. This is what I came up with.

Used the m3 nut/bolt printed Mlok nuts from that other thing site, uses 4x M3x10mm screws, and 4x M3 nuts.

Needs 2x M3x14 countersunk screws to hold the rail halves together.

Mount the sides with the Mloks, screw together. Add pic rail accessories as needed.