Rail Brace / Impact Device / Finger Stop

Totally 3D printable rail accessory, mounts via two screws included in part files that screw into accessory and fit into rail slots (think most cheap vertical foregrips). Accessory is designed mainly to allow you to brace the rail against an object, a wall, some cover, etc; also kind of acts like a finger stop but not really the design intent.

Your mileage may vary on how strong the part is; with HIPS, the screw nub tends to break off first before the actual brace does (which is preferred, yo