Zaffiri Precision ZPS.3 Slide (Optic Ready)

Zaffiri Precision ZPS.3 Slide (Optic Ready)

The Zaffiri Precision ZPS.3 Slide delivers premium machining and modern styling for Glock builders who want performance without the aggressive aesthetic of the ZPS.4. CNC-machined from a single billet of 17-4 stainless steel, this optic-ready slide offers tight tolerances, consistent cycling, and a clean, professional look — finished in durable Cerakote.

Precision-Machined for Serious Builders

Zaffiri Precision machines every ZPS.3 slide from certified 17-4 stainless steel billet — a significant step above cast or lower-grade slides [citation:2]. The tight tolerances and heat-treated construction deliver consistent cycling, improved accuracy potential, and long-term durability under regular use. This is a slide designed for builders who want Zaffiri quality in a more refined profile.

Optic-Ready Design with RMR and RMSc Footprints

The ZPS.3 features a precision-cut RMR footprint for full-size models (G17, G19) and an RMSc footprint for Slimline models (G43X) [citation:1][citation:12]. The RMR cut is compatible with Trijicon RMR/SRO, Holosun 407c/507c, and other popular “RMR footprint” optics. The RMSc cut accepts Shield RMS, Holosun 407k/507k, and Sig Romeo Zero. A black anodized cover plate and mounting screws are included with every slide.

Key Features and Benefits

Single Billet 17-4 Stainless Steel Construction

Machined from a single billet of 17-4 stainless steel, this slide offers exceptional strength, corrosion resistance, and durability. The material is heat-treated for reliable strength and long-term performance. This isn’t a mass-produced component — it’s a precision-machined upgrade built to last [citation:2].

Aggressive Serrations for Positive Manipulation

The ZPS.3 features Zaffiri’s signature serration pattern — deep, aggressive cuts that provide a secure grip for press checks, slide manipulations, and malfunction clearance. Even with wet or gloved hands, the serrations give you confident control [citation:1].

Compatible with Zaffiri Precision Barrels

The ZPS.3 is designed to pair with Zaffiri Precision barrels. Important: This slide is not ported compatible — ZP ported barrels are only compatible with the ZPS.P, ZPS.4, and ZPS.5 slides [citation:1][citation:8]. Flush/crown and threaded barrels are compatible.

Complete Technical Specifications

Specification	Detail
Model	Zaffiri Precision ZPS.3 Slide
Material	Single Billet 17-4 Stainless Steel
Finish	Cerakote (Armor Black, FDE, OD Green, Sniper Grey)
Optic Cut (Full-Size)	Trijicon RMR / SRO Footprint
Optic Cut (Slimline)	Shield RMSc / Holosun 407k/507k Footprint
Compatible Frames	Glock 19 Gen 3, Glock 19 Gen 5, Glock 43X (select configuration)
Included	Black anodized cover plate, mounting screws
Channel Liner	Not included (not required on G43/43X)
Internals	Not included (stripped slide)
Ported Barrel Compatible	No — ZP ported barrels only fit ZPS.P, ZPS.4, ZPS.5
Manufacturing	100% Made in the USA

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Available Configurations

Select your specific Glock model from the dropdown above. The ZPS.3 is available for:

• Glock 19 Gen 3 — Compact 9mm (RMR footprint)
• Glock 19 Gen 5 — Compact 9mm (RMR footprint)
• Glock 43X — Slimline 9mm (RMSc footprint)

Note: This is a stripped slide. Internal components are not included and must be sourced separately.

Compatible Red Dot Optics

RMR Footprint (G17/G19 Models)

• Trijicon RMR
• Trijicon SRO
• Holosun 407c / 507c / 508T
• Other RMR-footprint optics

RMSc Footprint (G43X Model)

• Shield RMS / RMSc
• Holosun 407k / 507k
• Sig Sauer Romeo Zero

For full technical specs on each optic, visit the manufacturer pages: Trijicon RMR · Holosun 507C.

Ideal For These Applications

Custom Glock Builds

The ZPS.3 is a favorite for custom Glock builds that want Zaffiri quality without the most aggressive aesthetic. Whether you’re creating a range-focused pistol, a carry gun, or a personalized build, this slide provides the precision foundation and clean styling that builders demand [citation:2].

Optic-Ready Upgrades

If you have a compatible Glock frame and want to add a red dot, the ZPS.3 is a direct, no-gunsmithing solution. The RMR/RMSc footprint accepts the most popular optics, and the included cover plate lets you run iron sights until you’re ready to mount a red dot.

Range and Training Pistols

The ZPS.3’s tight tolerances and billet construction deliver improved accuracy potential and consistent cycling. For range use and training, this slide provides a reliable, accurate platform with modern optic capability.

Fit and Compatibility

What This Slide Is Compatible With

• Glock 19 Gen 3 frames (select configuration)
• Glock 19 Gen 5 frames (select configuration)
• Glock 43X frames (select configuration)
• Zaffiri Precision barrels (flush/crown or threaded — NOT ported)
• RMR-footprint optics (G17/G19) or RMSc-footprint optics (G43X)
• OEM and aftermarket Glock internals (for the correct generation)

What This Slide Is NOT Compatible With

• Glock Gen 4 frames — ZPS.3 is engineered for Gen 3 and Gen 5 only
• Polymer80 frames — not compatible
• ZP ported barrels — only compatible with ZPS.P, ZPS.4, ZPS.5 [citation:1]
• Optics without RMR or RMSc footprint (adapter may be required)

Important Compatibility Notes

The ZPS.3 is a stripped slide. It does not include internal components or a channel liner (not required on G43/43X models) [citation:12]. You must install your own firing pin assembly, extractor, and safety plunger for the correct generation.

Frequently Asked Questions

Technical Details

Q: What material is the ZPS.3 slide made from? A: The ZPS.3 is CNC-machined from a single billet of 17-4 stainless steel, then heat-treated and finished with Cerakote for durability and corrosion resistance [citation:2]. Q: Does the ZPS.3 come with internal components? A: No. The ZPS.3 is a stripped slide and does not include internals or a channel liner. You will need to install your own parts for the correct generation [citation:1]. Q: Which optics fit the ZPS.3 optic cut? A: Full-size models (G17, G19) feature an RMR footprint compatible with Trijicon RMR/SRO and Holosun 407c/507c. Slimline models (G43X) feature an RMSc footprint compatible with Shield RMS, Holosun 407k/507k, and Sig Romeo Zero [citation:1][citation:12].

Compatibility Questions

Q: Will the ZPS.3 fit my Glock 19 Gen 4? A: No. The ZPS.3 is engineered for Gen 3 and Gen 5 frames only. It will not fit Gen 4 models. Q: Can I use this slide with a ported barrel? A: No. The ZPS.3 is NOT ported compatible. ZP ported barrels are only compatible with the ZPS.P, ZPS.4, and ZPS.5 slides [citation:1][citation:8].

Build and Usage

Q: Is the ZPS.3 a complete upper? A: No. The ZPS.3 slide sold here is a stripped slide. You must install internal components and a barrel separately. Q: What makes the ZPS.3 different from the ZPS.4? A: The ZPS.3 has a cleaner, more refined profile with standard Zaffiri serrations. The ZPS.4 has deeper serrations, more aggressive window cuts, and is ported-barrel compatible. The ZPS.3 is for builders who want Zaffiri quality in a more traditional profile.

Why Choose the Zaffiri Precision ZPS.3 Slide

Single Billet Construction

Machined from one piece of 17-4 stainless steel, the ZPS.3 offers strength, durability, and precision that cast slides can’t match. This is a genuine upgrade over factory components [citation:2].

Optic-Ready Without Compromise

The RMR and RMSc cuts allow direct mounting of the most popular red dot optics with no adapter plates. The included cover plate lets you run iron sights until you’re ready for an optic.

Refined Zaffiri Aesthetics

The ZPS.3 offers Zaffiri’s signature quality in a cleaner, more traditional profile than the ZPS.4. It’s the right choice for builders who want aftermarket performance without the most aggressive styling.

100% Made in the USA

Every Zaffiri Precision slide is machined, finished, and assembled at their facility in Largo, Florida. You’re supporting American manufacturing with every purchase [citation:2].

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