This TWS(Training Weapon System) Stock Type 3 is Slide-on replacement for original collapsible butt stock. With angled non-slip butt-pad allows faster presentation. Pivoting rear-accessed large storage compartment. Velcro on both side of the stock for sticking on your favorite patches. Quick Detach Sling mounting points are positioned for optimum usage. Quick detachable swivel (Q.D swivel is excluded) can be mounted on the stock. It's featured with removable recoil pad and Dual-release unlocking lever.