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This is the real deal straight from Heckler & Koch: a factory threaded barrel built for the full-size HK45 Tactical and chambered in .45 ACP. If you've been running your HK45 T for a while and want a fresh spare, or you're building out a suppressed rig, this is the exact part HK spec'd for the job. The muzzle comes threaded 16×1 left-hand, which is the standard pattern for the platform and works with a wide range of suppressors and muzzle devices.
HK's barrels are cold hammer forged and use their signature polygonal rifling, a design the company has refined since the 1960s. Instead of traditional lands and grooves, the polygonal bore seals better around the bullet, which tends to help with velocity and long-term barrel life. It's the same process HK uses across the HK45 line, so you're getting factory accuracy and durability, not a knockoff aftermarket blank.
One of the best parts about this barrel is how simple the swap is. It's a drop-in fit for full-size HK45 pistols, so no gunsmith and no fitting needed. Field strip the pistol, pull the old barrel, drop this one in, and you're back together in a couple minutes. Do note this is specific to the HK45 and HK45 Tactical, and is not the same barrel as the USP45, so make sure you're matching it to the right host gun.
The threaded muzzle is where this barrel earns its keep. Whether you're mounting a suppressor for range days or adding a muzzle device, the 16×1 LH threads give you a clean, secure interface. Keep in mind a thread protector does not come in the box, so if you want to cap the threads while running bare, grab one separately. Beyond that, the black finish keeps everything looking factory and balanced on the pistol.
Yes, this is a drop-in barrel for the full-size HK45 and HK45 Tactical pistols. The install is quick and requires no gunsmith. Just note that it is not compatible with the USP45, which uses a different barrel entirely.
The muzzle is threaded 16×1 left-hand, written as M16x1 LH. That's the standard pattern for the HK45 platform and works with most .45-rated suppressors and muzzle devices made for the gun.
No, a thread protector is not included in the box. If you plan to run the pistol without a suppressor or muzzle device attached, you'll want to pick one up separately to keep the threads clean and protected.
Yes, this is an authentic Heckler & Koch factory part, MPN 51000983. It's cold hammer forged with HK's polygonal rifling, built to the same fit, finish, and accuracy standards as the barrel that shipped in your pistol.
| UPC | 642230269866 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 51000983 |
| Length | 5.20" |
| Model |
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