Drop-in threaded slide assembly for the Glock 43X. Machined from a single billet of 17-4 stainless steel by Zaffiri Precision, this ZPS.2 slide arrives complete with a 9mm barrel threaded 1/2x28 and a factory-ready RMR optic cut — no fitting, no gunsmith work.

Features

• ZPS.2 profile — Zaffiri's flagship single-billet 17-4 stainless steel construction
• Black PVD finish on slide and matching black nitride barrel
• RMR-pattern optic cut, direct-milled (no plate stack)
• Threaded 9mm barrel, 1/2x28 TPI — accepts subcompact-width comps and 9mm suppressors
• Fits GLOCK 43X frames — drop-in on the OEM lower
• American-made in Largo, Florida

Compensator pairing: G43X threaded barrels only mate with subcompact-width comps such as the Faxon EXOS-533. Do not pair with G17/G19/G26-width comps (3CR 9mm Micro Comp) — the slide rails on a 43X are narrower and full-size comps will hang past the slide profile.

Break-in: Run 100–200 rounds of quality 115gr/124gr FMJ before evaluating groups. As with any premium 17-4 slide, verify optic screw torque (RMR spec 15 in-lb) after the first range trip.

Optic & cover-plate hardware: RMR footprint. Screw specs for reference: cover plate 6-32 × 1/3″, optic 6-32 × 7/16″.

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