Heckler & Koch126797734
Heckler and Koch (HK USA) Barrel Usp45 Cmpct Tact 45acp$263.11
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Availability: In Stock
Current Stock: Out of stock
If you run a full-size Heckler & Koch USP45 Tactical and want to run a suppressor or other threaded muzzle device, a Heckler & Koch USP45 Tactical .45 ACP barrel with factory threads is the straightforward upgrade path. This is a genuine HK USA drop-in barrel engineered to fit your existing USP45 platform without gunsmithing—pull the original, install this one, and you're ready to mount accessories. Whether you're a suppressor enthusiast, a precision shooter chasing versatility, or someone who wants to add a muzzle brake to tame recoil, a threaded barrel is the first step.
HK built this barrel the same way they build the ones that ship in their Tactical models: cold hammer forged polygonal rifling that's proven reliable across tens of thousands of rounds. The 16mm x 1.0mm left-hand threading is HK-spec, so it'll accept HK suppressors and any quality third-party can designed to that standard. It's a genuine parts-bin solution—no improvisation, no fitment guessing.
Important: this barrel fits all full-size USP .45 and USP45 Tactical models. It will not fit USP45 Compact variants or the newer HK45 platform, so verify your exact model before ordering. Once you confirm compatibility, you've got a reliable, factory-engineered way to modernize your .45.
| Caliber | .45 ACP |
| Barrel Thread | 16mm x 1.0mm left-hand |
| Rifling | Cold hammer forged polygonal |
| Fit | USP45 full-size and USP45 Tactical (NOT compact or HK45) |
No. This barrel is designed for full-size USP .45 and USP45 Tactical models only. It will not fit USP45 Compact or the newer HK45 pistol platform.
Any suppressor threaded for 16mm x 1.0mm left-hand will work. This includes HK factory suppressors and quality third-party cans designed to that specification. Confirm your suppressor's thread pitch before purchase.
This is a drop-in barrel. No gunsmithing required—remove the original barrel and install this one in its place.
Yes. This barrel is compatible with all full-size USP .45 models, not just the Tactical variant. If you own a full-size USP45, you can use it as a replacement or backup barrel.
SKU: 126797640 • Weight: 1oz
Availability: In Stock
Current Stock: Out of stock
If you run a full-size Heckler & Koch USP45 Tactical and want to run a suppressor or other threaded muzzle device, a Heckler & Koch USP45 Tactical .45 ACP barrel with factory threads is the straightforward upgrade path. This is a genuine HK USA drop-in barrel engineered to fit your existing USP45 platform without gunsmithing—pull the original, install this one, and you're ready to mount accessories. Whether you're a suppressor enthusiast, a precision shooter chasing versatility, or someone who wants to add a muzzle brake to tame recoil, a threaded barrel is the first step.
HK built this barrel the same way they build the ones that ship in their Tactical models: cold hammer forged polygonal rifling that's proven reliable across tens of thousands of rounds. The 16mm x 1.0mm left-hand threading is HK-spec, so it'll accept HK suppressors and any quality third-party can designed to that standard. It's a genuine parts-bin solution—no improvisation, no fitment guessing.
Important: this barrel fits all full-size USP .45 and USP45 Tactical models. It will not fit USP45 Compact variants or the newer HK45 platform, so verify your exact model before ordering. Once you confirm compatibility, you've got a reliable, factory-engineered way to modernize your .45.
| Caliber | .45 ACP |
| Barrel Thread | 16mm x 1.0mm left-hand |
| Rifling | Cold hammer forged polygonal |
| Fit | USP45 full-size and USP45 Tactical (NOT compact or HK45) |
No. This barrel is designed for full-size USP .45 and USP45 Tactical models only. It will not fit USP45 Compact or the newer HK45 pistol platform.
Any suppressor threaded for 16mm x 1.0mm left-hand will work. This includes HK factory suppressors and quality third-party cans designed to that specification. Confirm your suppressor's thread pitch before purchase.
This is a drop-in barrel. No gunsmithing required—remove the original barrel and install this one in its place.
Yes. This barrel is compatible with all full-size USP .45 models, not just the Tactical variant. If you own a full-size USP45, you can use it as a replacement or backup barrel.
SKU: 126797640 • Weight: 1oz