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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HK MP5 Barrel - 10mm - Threaded 9/16x24 with 3 Lug
RCM
$279.95RCM HK MP5 10mm Barrel - Threaded 9/16x24 Enhance the performance of your MP5 with the RCM HK MP5 10mm Barrel. This barrel is precision engineered for superior accuracy and durability. This barrel features a 9/16x24 thread and includes a thread protector...HKP-21158$279.95 -
HK G36C Piston Rod - Incomplete
H&K Heckler & Koch
$49.95Heckler and Koch Incomplete Black Gas Piston Rod for HK G36C A must have item for HK G36C conversions from SL8's or for spares for your G36C. New HK German factory part. Compatible with: G36CHKP-17009$49.95 -
HK417, MR762 Barrel Nut
H&K Heckler & Koch
$99.95HK MR762 Barrel Nut Or Socket Barrel - German HK A must have for any removal or work done to barrel as the barrel nut may need to be replaced./417 Compatible With: HK MR762/417HKP-16597$99.95 -
HK UMP Barrel - 9mm - Threaded with 3 Lug
Michaels Machines
$549.95HK UMP 9mm Barrel - Threaded - 3-Lug Specifications: 3Lug Threaded Compatible With: UMP 9mmHKP-02278$549.95 -
HK MP5 Barrel - .40 S&W - Threaded 9/16x24 with 3 Lug
HKP HK Parts
$249.95HKP HK MP5 .40 S&W Barrel - Threaded 9/16x24 - 3-Lug Newly manufactured US Made MP5 .40 S&W barrel that is 3-lugged and threaded with matching thread protector. This is a barrel offering that is made to the highest standards and tolerances and...HKP-16402$249.95 -
On Sale
HK MP5K Barrel - .357 Sig - Threaded 1/2x32 with 3 Lug - Gunsmith Special
USA
Now: $59.95Was: $289.95HK MP5K .357 Sig Barrel - 3 Lug - Threaded 1/2x32 - Gunsmith Special Unfinished US-Made MP5K .357 Sig barrel. Please Note: Will require work before being functional. HKP recommends the work be performed by a professional gunsmith. Condition will...HKP-99177Now: $59.95Was: $289.95 -
On Sale
HK23E, HK13 Barrel - 5.56 / .223 - 17.7"
RCM
Now: $629.96Was: $699.95RCM HK23E Barrel RCM HK23E light profile barrels are made from mil-spec 41V50 CHF blanks that are fully salt bath nitrided for optimal wear and corrosion resistance. These barrels are the finest out there to complete your HK23E or HK13 build. These are...HKP-21837Now: $629.96Was: $699.95 -
HK USP Compact Barrel - .40 S&W - 3.58"
H&K Heckler & Koch
$234.95HK USP Compact .40 S&W Barrel - 3.58" Overall Barrel Length A drop-in replacement barrel for all HK USPC .40 or .357 pistols. This is a great spare or replacement barrel. This is a must-have if you want to convert your .357 USPC to .40 cal...HKP-01413$234.95 -
HK Mark 23 Thread Protector - Tactical Texas Style - Threaded 16x1 - RH
H&K Heckler & Koch
$24.95H&K Mark 23 ACP Tactical Texas Style Thread Protector - Threaded 16x1 RH The Texas Style thread protector features raised knurling, distinguishing it from the standard HK style, which does not have this raised texture. This design ensures a secure...HKP-20406$24.95 -
HK P7M13 Barrel - 9mm
H&K Heckler & Koch
$479.95H&K HK P7M13 9mm Barrel Brand new HK German P7M13 factory spare barrel. Cold hammer forged and the real deal. No longer made or available as all HK P7 parts are out of production. Compatible With: HK P7M13HKP-17907$479.95 -
HK P2000 Barrel - 9mm - 3.36"
H&K Heckler & Koch
$319.95New HK German HK P2000 Barrel 9mm Brand new cold hammer forged 9mm P2000 barrel. Perfect for those who want to have a spare or for caliber conversion swaps.HKP-01570$319.95 -
HK51K Barrel - 7.62 / .308 - 5.3" - Threaded 15x1 RH
RCM
$164.95RCM HK51K (7.62x51/.308) Barrel - Threaded 15x1 RH Made to exact HK51K specifications from cold hammer forged steel, this barrel matches the quality of HK German barrels. Ideal for custom builds and HK51K style projects. Specifications: Made In The...HKP-02392$164.95