ROOK Tactical Rear Rail System (Polymer80 PF940 V2/C/SC) – Stainless Steel
About this product
A machined stainless steel replacement for the stamped rear rail module in Polymer80 PF940v2, PF940C and PF940SC frames. The factory rail module is the most common failure point on an 80% Glock-pattern build: the thin stamped rails can bend or crack during installation or after a few thousand rounds. The ROOK rear rail is milled from solid stainless with full-length rails, so the slide tracks squarely and the rails hold their shape.
Fitment
- Polymer80 PF940v2 (full size), PF940C (compact) and PF940SC (subcompact) frames
- Drop-in for the rear rail module position; uses the frame's rear pin
- Stainless steel, uncoated
Match it with the ROOK front locking block for a fully machined rail set. Check that your slide's rail cuts are clean and lightly oiled before the first cycle; a properly fitted machined rail should have no vertical play with the slide installed.