Slide Parts Kit Enhanced includes all the necessary Gen 3 parts for a functional GLOCK 17 19 26 Slide also compatible with SCT 19 | P80 PFC9 | PSA Dagger Upper Assembly Compatible with Polymer 80 Frames

Stop settling for worn-out factory internals. The AimArms Enhanced Slide Parts Kit is a complete upper rebuild solution engineered for Glock Gen 1–4 pistols and Polymer 80 builds. Every critical internal slide component is included — firing pin, extractor, recoil spring, channel liner, and more — giving you everything needed to restore peak function or elevate a custom build. Drop-in compatible. No gunsmithing required. This is the Glock slide upgrade kit that delivers real, measurable results at the range.

Why Your Glock Slide Internals Matter

The internal components of your Glock slide are the heartbeat of reliable function. Over thousands of rounds, the factory firing pin spring weakens, the extractor loses tension, and the channel liner wears. Even in a lightly used pistol, these parts degrade silently — until they don't. Whether you're running a carry gun, a competition setup, or finishing a Polymer 80 frame build, the internal components you choose directly determine how your pistol performs when it counts.

The AimArms Enhanced Slide Parts Kit was built for Glock owners who refuse to compromise.

What's Included in the Kit

Every AimArms Enhanced Slide Parts Kit contains the full suite of Glock upper internal components, pre-matched for reliable drop-in installation:

• Recoil Spring Assembly — optimized for consistent cycling and reduced muzzle flip
• Firing Pin (Striker) — precision-ground for reliable primer ignition across all ammunition types
• Firing Pin Spring — maintains consistent striker energy for reliable primer strikes
• Extractor — engineered for positive case retention and consistent ejection
• Extractor Depressor Plunger — ensures proper extractor cam angle and tension
• Spring-Loaded Bearing — supports smooth extractor plunger movement
• Depressor Plunger Spring — maintains proper extractor load under all conditions
• Firing Pin Safety — drop-safety component; keeps your Glock safe in the holster
• Firing Pin Safety Spring — ensures the safety resets reliably between shots
• Spacer Sleeve — maintains correct firing pin alignment within the slide
• Firing Pin Spring Cups (2) — seat and guide the firing pin spring for consistent compression
• Channel Liner — protects the slide's firing pin channel from wear and corrosion
• Slide Cover Plate — finishes the rear of the slide with a clean, secure fit

Everything you need. Nothing you don't.

Compatibility — Which Glocks Does This Fit?

The AimArms Enhanced Slide Parts Kit is designed for broad compatibility across the Glock platform:

⚠️ Gen 5 Note: Gen 5 models use a revised firing pin and extractor design. This kit is not recommended for Gen 5 pistols. Please see our Gen 5-specific parts listing.

Who This Kit Is For

The Custom Builder Completing a Polymer 80 frame? You need every internal component from scratch. This kit covers every slide internal in one order — no hunting across multiple suppliers.

The Rebuilder / Maintainer Running a high-round-count duty or range gun? Factory springs and extractors have service life limits. A full internal rebuild at 5,000–10,000 rounds restores factory-spec reliability — or better.

The Competitor Competition shooters demand zero-margin reliability. Swapping worn components before a match isn't paranoia — it's professionalism. The Enhanced kit ensures your slide internals are fresh, seated correctly, and tuned for performance.

The Budget-Smart Upgrader Rather than buying individual components piecemeal — paying separate shipping on a firing pin spring here, a channel liner there — this kit delivers every critical part in one shipment at a price that makes sense.

Why AimArms Over the Competition?

Installation — What to Expect

Installing the AimArms Enhanced Slide Parts Kit requires no specialized tools beyond basic Glock armorer equipment (a punch set and a non-marring hammer). Most experienced Glock owners complete the full swap in under 30 minutes.

For step-by-step visual guidance, visit our Installation / How-To Guide on the AimArms website. If you're completing a first-time Polymer 80 build, we recommend reviewing the full upper assembly sequence before beginning.

Recommended tools:

• Glock armorer's block (or bench block)
• 3/32" punch and 1/8" punch
• Small non-marring hammer
• Needle-nose pliers (for channel liner installation)

Frequently Asked Questions

Q: Does this kit work with a Glock 19 Gen 3 slide on a Polymer 80 PF940C frame? Yes. This kit is specifically compatible with the Gen 3 slide used on the PF940C build — one of the most common Polymer 80 configurations.

Q: Will this kit work in an aftermarket slide like a Grey Ghost or Strike Industries slide? In most cases, yes. Aftermarket slides built to standard Glock Gen 3/4 internal dimensions will accept this kit drop-in. If you're unsure, check your slide manufacturer's internal spec compatibility.

Q: Do I need to stake or modify any of the parts? No. All parts in this kit are drop-in and require no modification or staking.

Q: What's the difference between this and the standard AimArms Slide Parts Kit? The Enhanced kit includes additional performance-grade components and broader compatibility coverage versus the base kit. Refer to the kit contents table for a side-by-side comparison.

Q: Is this a Glock OEM kit? No. AimArms is an independent aftermarket parts supplier. This product is not manufactured, authorized, endorsed, or warranted by GLOCK, Inc. or GLOCK Ges.m.b.H. "GLOCK" is a federally registered trademark of GLOCK, Inc. and is referenced here solely to describe compatibility.

Maintenance Recommendation

To maintain peak performance from your Glock slide internals, consider:

• Recoil spring assembly: Replace every 3,000–5,000 rounds
• Firing pin spring: Replace every 5,000 rounds or annually on carry guns
• Extractor and firing pin safety: Inspect every 2,500 rounds; replace if wear is visible
• Channel liner: Replace whenever the firing pin assembly is rebuilt

Keeping a spare Enhanced Slide Parts Kit on the shelf means you're never caught unprepared.

 WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. “GLOCK” is a federally registered trademark of GLOCK, Inc. and is one of many trademarks owned by GLOCK, Inc. or GLOCK Ges.m.b.H.  Neither Aim Arms nor this site are affiliated in any manner with, or otherwise endorsed by, GLOCK, Inc. or GLOCK Ges.m.b.H.  The use of “GLOCK” on this page is merely to advertise the sale of GLOCK pistols, parts, or components.  For genuine GLOCK, Inc. and GLOCK Ges.m.b.H. products and parts visit www.glock.com.