Glock 19 Gen 5 Upper Parts Slide Completion Kit UPK

Zaffiri Precision

$99.99

More on the way!

Glock 19 Gen 5 – Upper Parts Kit – Slide Completion Kit – UPK

PLEASE DOUBLE CHECK DETAILS AND FITMENT BEFORE PURCHASE.

Made by Zaffiri Precision, this Glock 19 Gen 5 Upper Parts Kit is a complete slide-completion bundle built to OEM-style spec—so you can finish a stripped slide the right way without hunting down tiny parts one-by-one. If you’re building a Gen 5 G19 slide, this is the “don’t forget anything” kit.

Fitment

  • Fits: Glock 19 Gen 5 (slide upper parts)

Does NOT fit

  • Not compatible with Gen 1–4 Glock 19 slide builds
  • Not for other Glock models unless specifically listed as compatible

What it does

  • Completes a stripped Glock 19 Gen 5 slide with the critical internal components.
  • Restores/maintains reliable ignition, extraction, and safety-plunger function when assembling a custom slide.
  • Includes a recoil spring assembly (guide rod) so your upper has what it needs to cycle.

Why it’s worth it

  • Less headache: one kit, one box, one install.
  • Build clean: keeps your slide build consistent and avoids mixing random mystery parts.
  • Smart spare: also makes a good backup kit for hard-use guns if you keep a second slide.

Specs

  • Platform: Glock 19 Gen 5
  • Kit type: Upper/slide parts kit
  • Includes recoil spring assembly (guide rod): Yes

What’s included

  • Firing pin spring
  • Firing pin spacer sleeve
  • Spring cups (2-pack)
  • Firing pin safety
  • Firing pin safety spring
  • Extractor depressor plunger
  • Extractor depressor plunger spring
  • Spring loaded bearing
  • Firing pin channel liner
  • Extractor
  • Slide cover plate
  • Recoil spring assembly (guide rod)

Tools needed

  • Glock slide tool / armorer’s punch
  • Channel liner tool (recommended for clean installs)
  • Bench block or a steady surface (aka: don’t do this over shag carpet)

Install notes

  • Unload and clear the firearm before any work.
  • Take your time—small parts launch into orbit if you get impatient.
  • After assembly: perform a full function check, then test-fire before defensive use.

Verify before you buy

  • Confirm your build is specifically Glock 19 Gen 5.
  • Confirm your slide is a Gen 5 G19 slide and you are not mixing Gen components.

⚠ Install & Compatibility Disclaimer: Firearm parts should be installed by a qualified armorer or gunsmith when in doubt. Improper installation, modification, or use of aftermarket components may affect firearm safety, reliability, and void manufacturer warranties. By purchasing and installing third-party parts, the buyer assumes all responsibility for safe handling, installation, function testing, and use of their firearm and accessories.

⚠ Glock Disclaimer

IronKells Armory LLC is not affiliated with, endorsed by, or sponsored by Glock, Inc. or Glock Ges.m.b.H.
All references to GLOCK® are used solely to identify firearm models, parts compatibility, and fitment information for customers. Glock is a federally registered trademark of Glock, Inc. and Glock Ges.m.b.H.

Any product sold on this site referencing Glock is aftermarket, not OEM, and is not manufactured by Glock. Glock does not warranty, authorize, or guarantee the performance, safety, or reliability of any third-party components or modifications.

Firearm parts should be installed by a qualified armorer or gunsmith. Improper installation, modification, or use of aftermarket components may affect firearm safety, reliability, and void manufacturer warranties. By purchasing and installing third-party parts, the buyer assumes all responsibility for safe handling, installation, function testing, and use of their firearm and accessories.

Related Products