The easiest way to improve your Polymer80 pistol slide.
The ROOK Tactical Locking Block Rail System is fabricated to incredibly tight tolerances from high-quality stainless steel. That means it provides a better fit inside your frame, with smooth pin insertion, better pin retention and, most importantly, smoother and more reliable slide operation.
This upgraded Locking Block Rail is compatible with Polymer80's standard frame pins, and ROOK Tactical's stainless "anti-walk" pins. Designed exclusively for the PF940C and Strike 80 frames.
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