Barrels
Premium HK Barrels and Firearm Parts to upgrade your HK firearm with precision-engineered, CHF (Cold Hammer Forged) barrels, and premium parts built for reliability, unparalleled accuracy, and long-term performance. Our OEM and aftermarket HK barrels deliver exceptional quality and fit for pistols, rifles, and submachine guns.
Key Features:
- CHF (Cold Hammer Forged) construction for unmatched durability and precision
- Engineered for superior accuracy and shot consistency
- Made from premium, corrosion-resistant materials
- Designed for performance, competition, and tactical applications
- OEM fit and easy installation across multiple HK platforms
Enhance your HK pistol or rifle with the best high-performance CHF barrels engineered for excellence, trusted by professionals and firearm enthusiasts.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
On Sale
HK Pistol O-Ring - .45 ACP Barrel - Green
H&K Heckler & Koch
Now: $4.46Was: $4.95O-Ring for .45 caliber barrels HK introduced O-rings with the HK Mark 23 and HK USP 45 Tactical pistols. Features: Original green color no longer in production Same high-temperature rubber as the newer black O-rings Factory part that provides the seal...Now: $4.46Was: $4.95 -
On Sale
HK45, USP, Mark 23 Barrel O-Ring - .45 ACP - Red
HKP HK Parts
Now: $3.96Was: $4.95HKP HK .45 Barrel O-Ring All Caliber Pistols - Red A rare find as we have found a small lot of HK red-colored HK .45 O-rings. All HK O-rings are still made of the same material as the newer black O- rings only in the HK red color. A great spare and...Now: $3.96Was: $4.95 -
On Sale
HK VP9 O-Ring - Barrel - Thread Protector - Green
H&K Heckler & Koch
Now: $4.46Was: $4.95HK German 9mm barrel O-ring - Green For thread protector or barrel slot on the Elite barrel. The o-ring is a high wear and replacement item. Stock up at the lowest price in the country. To save even more order 10 or more and get an additional $1 off per...Now: $4.46Was: $4.95 -
On Sale
HK .45 ACP O-Ring - Barrel
H&K Heckler & Koch
Now: $4.46Was: $4.95Heckler and Koch .45 ACP Caliber Barrel O-Ring in Black A great spare and a much-needed part for your HK barrel. This factory part is a high-wear item, as the O-ring provides the seal between the slide and the barrel, which provides a secure lockup with...Now: $4.46Was: $4.95 -
On Sale
HK MP5SD Sealing Ring - Enhanced
HKP HK Parts
Now: $7.96Was: $9.95HKP MP5SD Sealing Ring - Enhanced The enhanced sealing ring is made from a newer, longer-lasting material as well as having a slightly thicker profile for secure sealing. The MP5SD sealing ring is the gasket that seals the SD suppressor against the...Now: $7.96Was: $9.95 -
Out Of StockOn Sale
HK VP9, P30 Thread Protector - 13.5x1 - LH
H&K Heckler & Koch
Now: $35.96Was: $39.95H&K 9mm Thread Protector - Threaded 13.5x1 LH This German HK manufactured 9mm tactical threaded barrel protector fits all HK 9mm threaded barrels that are 13.5x1 metric LH twist. Specifications: Overall Length .45" Outside Diameter ...Now: $35.96Was: $39.95 -
On Sale
HK USP, VP9 Barrel O-Ring - 9mm
H&K Heckler & Koch
Now: $4.46Was: $4.95HK German 9mm Barrel O-ring The O-ring is a high-wear and replacement item. To save money - order 10 or more and get an additional $1 off per O-ring. Compatible with: HK 9mm barrels with O-ring groove HK USP, USP Compact, USP Tactical 9mm HK USP Elite...Now: $4.46Was: $4.95 -
Out Of StockOn Sale
HK45 Thread Protector - 16x1 LH
H&K Heckler & Koch
Now: $22.45Was: $24.95H&K .45 ACP Thread Protector - Threaded 16x1 LH The cap fits all HK45 full size & compact barrels threaded 16x1 LH hand thread. A must have item to protect your threaded barrels, exposed threads, and your HK pistol investment. The use of the...Now: $22.45Was: $24.95 -
On Sale
HK G36, G36C, G36K, SL8 Barrel Wrench
Now: $125.95Was: $139.95Barrel Wrench for HK G36, G36C, G36K, SL8 Barrel wrench designed for all HK G36 and SL8 barrel lengths, from the 9" G36C to the 20" SL8. The tool uses a 3-point contact system for secure engagement and proper torque transfer on the barrel nut. A 3/8"...Now: $125.95Was: $139.95 -
On Sale
HK MP5, MP5K Thread Protector - 9mm - Threaded 1/2x28 RH
HKP HK Parts
Now: $11.96Was: $14.95HKP/H&K MP5/K 9mm Thread Protector - Threaded 1/2x28 RH This US-made thread protector is specifically designed for HK MP5, MP5K, and threaded barrel applications. Ideal for MP5, MP5-N, and MP5K-N style barrels, it is the factory-correct protector for...Now: $11.96Was: $14.95 -
Out Of StockOn Sale
HK G36, SL8 Barrel Mandrel
Other
Now: $98.95Was: $109.95Barrel Mandrel For Removal and Installation of HK G36 and HK SL8 Barrels A mandrel barrel changing tool for firearms is a specialized rod inserted into the barrel to provide internal support and alignment during the process of removal or installation...Now: $98.95Was: $109.95 -
On Sale
HK VP9 Tactical Barrel - 9mm - 4.7" - Threaded 13.5x1 LH
H&K Heckler & Koch
Now: $247.45Was: $274.95H&K VP9 9mm Tactical Barrel - Threaded 13.5x1 LH Precision-made in Germany by HK from cold hammer forged (CHF) ordnance-grade steel, this is the finest threaded factory barrel available for the HK VP9 or VP9 Tactical pistol. Ideal as a spare or...Now: $247.45Was: $274.95