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ROOK Tactical Rear Rail System (Polymer80 PF940 V2/C/SC) – Stainless Steel

SKUROOK-1005-SS Category80% Frames
$34.19
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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.

Sources & methodology. Editorial review and rating by Marcus Hale based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication.
$34.19