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 Mark 23 Barrel - .45 ACP - 6.02" - Non-Threaded
RCM
$250.00RCM HK Mark 23 .45 ACP Barrel - Non-Threaded Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished inside and out with an ultra-desirable nitride coating. This is the finest replacement barrel available for the HK Mark...HKP-16561$250.00 -
HK45 Thread Protector - 16x1 LH - Titanium
HKP HK Parts
$19.95HKP .45 ACP Titanium Thread Protector - Threaded 16x1 LH This new style .45 ACP tactical thread protector fits all HK45 full-size and compact barrels with 16x1 LH threads. Essential for protecting your threaded barrels and exposed threads, it preserves...HKP-18004$19.95 -
HK94 Barrel Shroud - SD Style
H&K Heckler & Koch
$99.95Heckler and Koch HK94 SD Style Barrel Shroud Features: Fits all factory HK94 rifles or barrels Made to factory German HK94 specs. Designed to cover the 16" barrel Provides a neat SD style look without the cost of a full conversion Made of...HKP-02100$99.95 -
HK53 Barrel - .300 BLK - 8.20" - Threaded 5/8x24
RCM
$239.95RCM HK53 .300 BLK Barrel - Threaded 5/8x24 Each barrel was designed for use with the wildly popular AAC style quick detach muzzle breaks and suppressors with the 5/8x24 thread pitch. Although, this barrel is perfect for just about any .300 BLK suppressor...HKP-13907$239.95 -
HK MP5, MP5K Muzzle Protector Cap - 3-Lug
H&K Heckler & Koch
$19.95H&K MP5, MP5K Muzzle Protector Cap - 3-Lug New HK German high-impact polymer muzzle protector, sealing cap. Simply slide the barrel cap over the exposed HK MP5, MP5K 3-lug barrel and remove when needed. A must have for sealing the muzzle end of the...HKP-17666$19.95 -
HK P2000 Conversion Barrel - .40 S&W to .357 SIG
RCM
$239.95RCM HK P2000 .40 to .357 Conversion Barrel This is a great spare or replacement barrel to have on hand. Also, a popular barrel to convert the P2000 .40 to .357. Compatible With: HK P2000 .40 S&WHKP-20580$239.95 -
HK SL8, G36 Piston Rod Assembly
H&K Heckler & Koch
$64.95Heckler and Koch HK German G36 and HK SL8 Gas Piston Rod Spring Assembly Great for spare parts or to use on that HK SL8-G36 conversion. This is a high-wear item and a must-have spare part. Compatible With: HK SL8-6, SL8-1 HK G36E, G36 full...HKP-02000$64.95 -
HK21, HK21E, HK23E, HK11A1 Barrel Handle
Michaels Machines
$74.95HK 21, 21E, 23E, HK11 Barrel Handle US-made barrel handle. A great alternative for the original barrel handles that are no longer in production. Available in black or OD green and compatible with 5.56 and .308 platforms. Compatible...HKP-00244-M$74.95 -
Out Of Stock
HK VP40 Conversion Barrel - .40 S&W to 9mm - Threaded - 1/2x28
RCM
$214.95RCM HK VP40 to 9mm Conversion Barrel - Threaded - 1/2x28 This 9mm conversion barrel is a drop-in replacement that allows your VP40 to shoot the popular 9mm cartridge. It has the standard 1/2x28 thread and comes with a thread protector. Each barrel...HKP-21676$214.95 -
Out Of Stock
HK P30SK, P2000SK Barrel - 9mm - 3.89" - Threaded 13.5x1 LH
RCM
$225.00RCM HK P30SK & P2000SK 9mm Barrel - Threaded 13.5x1 LH Each HK P2000SK & P30SK tactical barrel is finely and painstakingly made from ordnance grade steel, heat-treated, and finished inside and out in the ultra-desirable nitride finish...HKP-19307$225.00 -
Out Of Stock
HK VP9SK Tactical Barrel - 9mm - Threaded 13.5x1 LH
RCM
$225.00RCM HK VP9SK 9mm Tactical Barrel - Threaded 13.5x1 LH Each VPSK Tactical barrel is machined from ordnance grade steel, heat treated then nitrided inside and out. This is the finest threaded replacement barrel for the HK VP9SK 9mm pistol, ideal as...HKP-19262$225.00 -
HK416, MR556 Barrel - 5.56 - 10.4" - Threaded 1/2"x28 - A3
Nefarious Arms
$594.95Nefarious Arms HK 416/MR556 10.4" A3 Barrel ***THE BARREL EXTENSION RIM IS MARKED "HAUS" DUE TO AN ERROR BY THE BARREL EXTENSION SUPPLIER. THE MARKING IS NOT VISIBLE ONCE INSTALLED. THESE BARRELS ARE GENUINE NEFARIOUS BARRELS AS NEFARIOUS...HKP-21335$594.95