Assembled RMR Window Slide for Glock 19 Gen 3 — Brownells + Ported

Assembled RMR window slide for Glock 19 Gen 3 frames — Brownells billet build with a matched ported 9mm barrel, drop-in onto the factory Gen 3 lower. The window cut reduces reciprocating mass and the porting routes muzzle gas upward to flatten recoil. All slide internals (firing pin, extractor, plunger, recoil rod assembly, spring) ship installed.

RMR pocket accepts Trijicon RMR Type 2 and matching-footprint optics (Holosun 407C / 507C, SIG Romeo1 Pro). Iron sights are included on standard Glock-pattern dovetails for co-witness or backup. The included barrel is a Brownells-spec ported 9mm — porting only, no muzzle threads.

Features:

• Fits: Glock 19 Gen 3 frames
• Window cut for weight reduction
• RMR optic cut (Trijicon RMR Type 2, Holosun 407C/507C footprint)
• Matching Brownells ported 9mm barrel — gas porting at muzzle
• Internals installed: firing pin, extractor, recoil rod, spring
• Iron sights included on standard Glock dovetails
• Optic mount screws: 6-32 × 7/16"; cover plate: 6-32 × 1/3"
• Made in USA by Brownells

Lube the rails, short break-in (50-100 rounds) recommended before duty use, and confirm your optic ships with footprint-matched screws.

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