Magpul RVG - Rail Vertical Grip for 1913 Picatinny Color:Black Though the idea of having

Though the idea of having a compensated pistol is nothing new

inserted in rucks

From the drawing board

Short Railed Handguard with SAI QD System For Tool-less Rail Changes (Black)

And currently used by several special force unit

Magpul RVG - Rail Vertical Grip for 1913 Picatinny Color:Black Though the idea of havingDesigned for use with 1913 Picatinny railed hand guards, the RVG is a basic, light weight, cost effective vertical fore grip. Shape is ergonomically designed for use as a traditional vertical grip. It has also been optimized for use with the "thumb break method" of shooting. Includes all mounting hardware plus a universal mounting rail for custom fitting to many factory plastic hand guards. Made in the USA.