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 USPC Tactical Barrel - 9mm - 4.28" - Threaded 1/2x28 RH
RCM
$225.00RCM HK USPC 9mm Tactical Barrel - Threaded 1/2x28 RHHKP-01705$225.00 -
HK MP5SD Barrel Port Cleaning Brush - 9mm
H&K Heckler & Koch
$164.95HK Factory MP5SD Barrel Port Brush A much-needed barrel brush to keep the barrel clean on all factory HK MP5SD'S. Fits HK factory SD barrels or in-spec clone barrels such as RCM US-made barrels...HKP-00137$164.95 -
HK MP7, G36, SL8 Gas Block Pin
H&K Heckler & Koch
$8.95H&K HK G36/SL8/MP7 Gas Block Pin The G36/SL8/MP7 gas block pin is the largest out of HK's line up (UMP/USC, 415/MR556, 417/MR762).HKP-16727$8.95 -
Out Of Stock
HK USP Tactical Barrel - .40 S&W - 4.9"- Threaded 14.5x1 LH
H&K Heckler & Koch
$299.95H&K USP .40 S&W Tactical Barrel - Threaded 14.5x1 LH This genuine Heckler & Koch part is a drop-in replacement for the full-size USP, USP Tactical, and other .40 S&W pistols. The tactical threaded...HKP-00328$299.95 -
On Sale
Thread Protector - .40 S&W - Tactical Barrels - 14.5x1 LH
HKP HK Parts
Now: $10.10Was: $17.95HK VP40, P2000, USP40, P30 Thread Protector - Threaded 14.5x1 LH - .40 S&W HKP tactical thread protector for HK .40 S&W barrels threaded 14.5x1 LH. Designed as the correct thread protector for HK...HKP-99502Now: $10.10Was: $17.95 -
Out Of Stock
HK91, G3 Barrel - 7.62 / .308 - 17.7" - Threaded 15x1 RH
RCM
$264.95RCM HK G3/91 (7.62x51/.308) Barrel - Threaded 15x1 RH Made by RCM to the highest tolerances and finest material available. Perfect for that HK build or to replace that shot-out barrel. Each barrel...HKP-01136$264.95 -
Out Of Stock
HK P30SK, P2000SK Tactical Barrel - 9mm - 3.89" - Threaded 1/2x28 RH
RCM
$225.00RCM HK P30SK & HK P2000SK 9mm Tactical Barrel - Threaded 1/2x28 RH Each HK P2000SK and P30SK tactical barrel is meticulously crafted from ordnance grade steel, heat treated, and finished with a...HKP-19306$225.00 -
HK USP Thread Protector - .45 ACP - 16X1 LH
HKP HK Parts
$19.95HKP HK USP .45 ACP 16X1 LH Thread Protector Thread protector for 16X1 left-hand .45 ACP barrels. Compatible With: HK USP .45 & CompactHKP-22177$19.95 -
On Sale
HK91, G3 Tapered Barrel - 16" - Threaded 5/8x24 RH
PTR
Now: $141.71Was: $229.95PTR HK G3/91 Tapered Barrel - Threaded 5/8x24 PTR manufactured US made barrel for the HK91, G3 & PTR style of firearms. This 16" barrel will allow you to add a threaded flash hider that is threaded...HKP-19472Now: $141.71Was: $229.95 -
Out Of Stock
HK45 Tactical Barrel - .45 ACP - 5.15" - Threaded .578x28 RH
RCM
$250.00RCM HK45 .45 ACP Tactical Barrel - Threaded .578x28 RH HK45 & HK45 Tactical threaded barrel compatible with a variety of flash hiders and sound suppressors. Unlike the factory HK45 Tactical barrel,...HKP-17446$250.00 -
Out Of Stock
HK G36K Piston Rod Assembly, Complete
H&K Heckler & Koch
$89.95New Heckler and Koch German Gas Piston Rod and Spring Assembly for HK G36K Great for spare parts or to use on that HK SL8-G36 conversion. Compatible with: G36KHKP-00284$89.95 -
HK VP9 Match Barrel - 9mm - Threaded 1/2x28
RCM
$262.50RCM HK VP9 Match 9mm Barrel with Thread Protector - Threaded 1/2x28 Precision replacement barrel produced by RCM for the HK VP9 Match pistol. This barrel features a threaded muzzle for suppressors or...HKP-21069$262.50