Glock Gen 3–4 – Ultimate Builder’s Kit – 2.5–3 lb Pull – Black
PLEASE DOUBLE CHECK DETAILS AND FITMENT BEFORE PURCHASE.
Timney’s Ultimate Builder’s Kit for Glock Gen 3–4 is a matched trigger-system upgrade built around the Alpha Competition trigger platform. This black kit is designed for stock Glock Gen 3 and Gen 4 medium-frame, double-stack pistols and gives you a more complete fire-control package instead of a basic trigger swap with random parts mixed in like a garage sale experiment.
Timney rates this kit at a 2.5 to 3 lb pull weight and builds it around coated matched components intended to work together for a smoother press and more consistent feel. This version is non-adjustable and uses the internal pivoting safety trigger setup.
Fitment
- Fits stock Glock Gen 3 and Gen 4 medium-frame double-stack pistols
- Compatible models include G17, G19, G22, G23, G26, G27, G31, G32, G33, G34, and G35
- Built around Timney’s Alpha Competition trigger platform
Does NOT fit
- Does not fit large-frame Glock models such as G20, G21, G29, G30, G40, or G41
- Does not fit slimline or single-stack pattern models such as G36, G42, G43, G43X, or G48
- Does not fit Gen 5-only pattern pistols such as G19X and G45
- Only compatible with stock Glock pistols
- Not intended for adjustable-trigger buyers
What it does
This kit upgrades the Glock fire-control system with matched internals designed to improve pull feel, reduce friction, and keep the system working together as one package. Instead of only replacing the trigger shoe and hoping the rest of the stack behaves, the UBK adds the supporting parts that help the whole setup run cleaner.
Why it’s worth it
If a buyer already knows they want more than a simple trigger swap, this is the smarter route. The included striker, connector, safety plunger, springs, and coated parts make more sense than piecing together a “custom” setup from whatever happened to be on sale that week.
Specs
- Product line: Ultimate Builder’s Kit
- Pull weight: 2.5–3 lb
- Color: Black
- Trigger style: Straight aluminum trigger with internal pivoting safety
- Compatibility: Stock Glock Gen 3–4 medium-frame double-stack pistols
- Striker: Stainless steel with NP3 coating
- Connector: Stainless steel with NP3 coating
- Safety plunger: Tool steel with NP3 coating
- Configuration: Not adjustable
- Intended use: Competition-oriented trigger system upgrade
What’s included
- Alpha Competition trigger assembly
- Striker
- Striker spring
- Connector
- Safety plunger
- Safety plunger spring
Tools needed
Basic Glock disassembly tools and armorer-level tools are recommended for proper installation and post-install safety checks.
Install notes
This is a function-critical fire-control kit, not a cosmetic bolt-on. Install it correctly, verify safe operation, and perform full function testing before live fire. Trigger work is not where blind confidence earns medals.
Verify before you buy
Verify your pistol is a stock Glock Gen 3 or Gen 4 medium-frame double-stack model and not a large-frame, slimline, or Gen 5-only variant. Verify you want the black non-adjustable Ultimate Builder’s Kit with internal pivoting safety before ordering.
⚠ 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.
⚠ Install & Compatibility Disclaimer
Installation should be performed by a qualified armorer or gunsmith. Improper installation, modification, or use may affect firearm safety and reliability. Buyer is responsible for verifying compatibility, performing proper function testing, and ensuring safe operation.
