This 9mm drop-in replacement barrel fits Glock 43 and Glock 43X pistols out of the box — no fitting, no gunsmithing. It's a clean factory-spec replacement for shooters who want a more durable upgrade for daily carry or a fresh barrel for the range.

Machined from 4150 chrome moly vanadium steel and finished in black nitride for surface hardness and corrosion resistance. The matte black finish blends with most stripped or assembled Glock 43/43X slide finishes. Chamber and bore dimensions match factory spec, so feed-ramp geometry and headspace stay correct with quality 9mm range and defensive ammunition.

• Caliber: 9mm Luger
• Fits: Glock 43 and Glock 43X (single-stack 9mm frames)
• Material: 4150 chrome moly vanadium steel
• Finish: black nitride — matte, hardened surface
• Twist rate: 1:16
• Drop-in: no fitting required for Glock 43/43X factory or aftermarket slides

Run a light coat of oil on the exterior and feed ramp before your first range trip and put 50–100 rounds through the gun to settle the barrel into your slide and recoil spring. Always confirm function with your specific load and pistol setup before carry. Verify caliber and frame compatibility before installation.

DISCLAIMER: 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 3CR Tactical nor this site are affiliated with, or endorsed by, GLOCK, Inc. or GLOCK Ges.m.b.H. The use of "GLOCK" on this page is merely to advertise the sale of aftermarket GLOCK pistol components. For genuine GLOCK, Inc. products, visit www.glock.com.