
VIDEO: Folding, Magpul UCS Fits Vertical Picatinny Rails
Magpul just dropped its latest stock accessory, filling a very particular niche. The UCS comprises a lightweight stock system for semi-auto carbines utilizing a vertical M1913 Picatinny rail at the rear of the receiver. Magpul UCS (Universal Carbine Stock) The UCS design accommodates a wide variety of charging handle styles,