Glock 43 / 43X – Threaded Barrel – 1/2x28 – 9mm
PLEASE DOUBLE CHECK DETAILS AND FITMENT BEFORE PURCHASE.
Made by Zaffiri Precision, this threaded barrel is a drop-in upgrade for the Glock 43/43X platform that gives you a proper 1/2x28 muzzle for comps and suppressor-ready setups, while keeping accuracy and reliability in mind with a fully supported chamber, improved feed ramp geometry, and a target crown. Thread protector included.
Available options are organized below under Variants.
Fitment
- Fits: Glock 43 / Glock 43X (9mm)
- Muzzle threads: 1/2x28
Does NOT fit
- Does not fit: Glock 42
- Not for double-stack Glock models (19/17/26/34, etc.)
What it does
- Adds a 1/2x28 threaded muzzle for comps/suppressors (where legal).
- Improves lock-up consistency with an oversized lock-up area and a target crown.
- Designed for reliable feeding with a fully supported chamber and improved feed ramp.
Why it’s worth it
- Simple way to unlock muzzle devices on the G43/43X platform.
- Conventional rifling and polished chamber/bore to run lead, plated, and jacketed bullets well.
- Thread protector included so you’re not raw-dogging threads in a holster.
Specs
- Caliber: 9mm
- Barrel length: 3.4"
- Thread pitch: 1/2x28
- Material: 416R stainless steel
- Heat treat: RC 40–42
- Chamber: Fully supported
- Rifling: Conventional
- Finish: See variant (Black Nitride / TiN Gold)
What’s included
- Threaded barrel (1)
- Thread protector (1)
Tools needed
- No special tools for install (standard field strip)
- Wrench for thread protector / muzzle device (if installing)
Install notes
- Unload and clear the firearm before installation.
- After installation: function check, then test-fire before carry/defensive use.
- If you add a comp or suppressor, you may need tuning depending on ammo and setup.
Verify before you buy
- Confirm your pistol is a Glock 43 or 43X.
- Confirm you need 1/2x28 threads for your muzzle device.
⚠ 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.