Recoil Pad "Special" WITH/Sight Pocket, Designed Exclusively for the KT Sub9/40 Foldable Carbine "Special": Extended Length (LOP 15.25), With Sight Pocket. This unit will ONLY fit the Sub9/40 firearms. The front sight on these firearms is different than the Sub2000's. The patented 'Special' ATI recoil pad is an innovative design for the Keltec Sub9 and Sub40 family of firearms. (ATI) design of the recoil pad consists of a soft yet scratch resistant recoil-absorbing silicone. This inert (non-toxic) silicone material distributes the recoil effect over the entire pad surface, reducing the felt recoil to the shooter. The silicone is not affected by time or temperature. Kevlar imbedded for added strength. A front sight pocket has been specifically engineered into the design of this recoil pad to protect the front sight while the firearm is in a folded state (Sub9/40 only). Kevlar imbedded for added strength.