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.
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Out Of Stock
HK G36C Gas Piston Rod and Spring
H&K Heckler & Koch
$89.95Heckler and Koch Complete Gas Piston Rod and Spring Assembly for HK G36C A must-have item for HK G36C conversions from G36 to SL8's or for spares for your G36CHKP-00353$89.95 -
HK USP Conversion Barrel - .40 S&W to 9mm - Threaded - 13.5x1
RCM
$214.95RCM HK USP .40 to 9mm Conversion Barrel - Threaded - 13.5x1HKP-21789$214.95 -
Thread Protector - .40 S&W - Tactical Texas Style - 14.5x1 LH
USA
$24.95HKP .40 S&W Tactical Texas Style Thread Protector - Threaded 14.5x1 LH The Texas style thread protector features raised knurling, distinguishing it from the standard HK Style with flat knurling. Made...HKP-19907$24.95 -
HK MP5 Barrel - 9mm - 8.85" - 3 Lug
RCM
$149.95RCM HK MP5 9mm Barrel - Non-Threaded 3-LugHKP-02040$149.95 -
Out Of Stock
HK USP Conversion Barrel - .40 S&W to 9mm - Threaded - 1/2x28
RCM
$214.95RCM HK USP .40 to 9mm Conversion Barrel - Threaded - 1/2x28HKP-21787$214.95 -
HK416 A4, MR556 A5 Barrel Nut
H&K Heckler & Koch
$60.95H&K HK MR556 A4/HK416A5 Barrel Nut This precision-machined steel barrel nut is designed specifically for H&K’s MR556 A4 and HK416A5 rifles. It secures the barrel and supports the proprietary HK...HKP-21938$60.95 -
HK MP5, SP5 3-Lug Faux Suppressor - MP5SD Style
MFI
$167.95HK MP5, SP5 3-Lug Faux Suppressor - MP5SD Style MFI replicated the classic MP5SD suppressor appearance. Designed to fit any factory spec 3-lug barrel and a perfect match with the HKPHKP-22440$167.95 -
On Sale
HK G36, G36K Gas Block - US
USA
Now: $50.97Was: $79.95Gas Block - US Made - HK G36E, G36KHKP-19915Now: $50.97Was: $79.95 -
Out Of Stock
HK P2000 Barrel - .357 SIG
H&K Heckler & Koch
$329.95HK P2000 .357 Barrel This is a great spare or replacement barrel to have on hand. This is a popular barrel to convert the P2000 .40 to .357.HKP-01419$329.95 -
HK45 Thread Protector - .578x28 RH - Knurled
HKP HK Parts
$14.95HKP HK Parts HK45 Thread Protector - Threaded .578x28 RH - .45 ACP The new US-made .45 ACP tactical thread protector, the cap fits all HK45 full size & compact barrels threaded .578x28 RH thread. A...HKP-17623$14.95 -
HK G3, M61 Barrel - 7.62 - 17.7" - Threaded 15x1 RH
RCM
$274.95RCM HK G3 & M61 (7.62x51/.308) Barrel - Threaded 15x1 RH Brand New Barrel for the Pre-G3 HK M61. The M61 was produced by H&K in Germany and has some aesthetic features that the final G3 rifles did...HKP-21353$274.95 -
On Sale
HK UMP Barrel - 9mm - Threaded 1/2x28 with 3 Lug - US
HKP HK Parts
Now: $191.22Was: $299.95HKP HK UMP 9mm Barrel - Threaded 1/2x28 - 3-lug HKP UMP 3-lug 1/2x28 threaded barrel. This is the perfect replacement for a worn out barrel or as a spare. With the 3-lug attachment point you can...HKP-18639Now: $191.22Was: $299.95