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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On Sale
HK45 Thread Protector - .578x28 - RH
HKP HK Parts
Now: $15.96Was: $19.95HKP HK45 .45 ACP Thread Protector - Threaded .578x28 RH The new US-made .45 ACP tactical thread protector, the cap fits all HK45 full size & compact barrels threaded .578x28 RH thread. A must have item to protect your threaded barrels & exposed...Now: $15.96Was: $19.95 -
Out Of StockOn Sale
HK45 Barrel - Tactical - Threaded 16x1 LH
H&K Heckler & Koch
Now: $268.15Was: $297.95H&K 45 .45 ACP Tactical Barrel - Threaded 16x1 LH New HK45 German factory cold hammer forged threaded barrel for use with flash hiders or sound suppressors. This is a drop-in barrel for any of the HK45 full-size pistols. No gunsmith is required as...Now: $268.15Was: $297.95 -
On Sale
HK G36C, G36K Gas Piston - US
GSG9
Now: $67.45Was: $74.95GSG9 complete gas piston for HK G36C and G36K - US made This is a popular part for those upgrading to an HK SL8 to HK G36K or HK36C barrel length. Each piston counts as one 922r compliant part. Made in the USA. Features: New USA manufactured gas piston...Now: $67.45Was: $74.95 -
HK VP9 Match Barrel - 9mm - Threaded 1/2x28
RCM
$262.50RCM HK VP9 Match 9mm Barrel - Threaded 1/2x28 Each barrel is made from ordnance grade steel, heat treated, and finished inside and out in the ultra-desirable nitride finish. The perfect barrel for use as a spare or for adding muzzle devices such as sound...$262.50 -
On Sale
HK USP Tactical Barrel - 9mm - 4.86" - Threaded 1/2x28
RCM
Now: $202.50Was: $225.00RCM HK USP 9mm Tactical Barrel - Threaded 1/2x28 Each barrel is finely and painstakingly made from ordnance grade steel, heat treated and finished inside and out in the ultra-desirable nitride finish. This is the finest replacement barrel available for...Now: $202.50Was: $225.00 -
Out Of StockOn Sale
HK USPC, USPC Tactical Conversion Barrel - .40 S&W to .357 SIG - Non-Threaded
RCM
Now: $213.75Was: $237.50RCM HK USPC .40 S&W to .357 SIG Caliber Conversion Barrel - Non-Threaded Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest replacement barrel for the HK USPC ...Now: $213.75Was: $237.50 -
HK USPC Barrel - .45 ACP - Threaded 16x1 LH
H&K Heckler & Koch
$301.95H&K USPC .45 ACP Barrel - Threaded 16x1 LH This H&K USPC .45 ACP barrel features a threaded 16x1 LH design, ideal for enhancing your firearm. Made from cold hammer-forged steel with polygonal rifling, it ensures durability and precision. The...$301.95 -
On Sale
HK MP5 Barrel - 9mm - 3 Lug - Threaded 1/2x28
B&T Brugger & Thomet
Now: $341.06Was: $378.95B&T HK MP5 9mm Barrel - Threaded 1/2x28 - 3-Lug New from B&T Switzerland, these MP5 barrels are cold hammer forged, fluted, and nitrided to exact HK specifications. B&T's close relationship with H&K and extensive history of...Now: $341.06Was: $378.95 -
On Sale
HK91, G3 Barrel - 7.62 / .308 - 16" - Threaded 5/8x24 - Tapered
PTR
Now: $206.95Was: $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 5/8x24 US threads. Specifications: Overall Length...Now: $206.95Was: $229.95 -
On Sale
HK 9mm Thread Protector - Enhanced - 13.5x1
HKP HK Parts
Now: $15.96Was: $19.95HKP HK 9mm Enhanced Thread Protector - 13.5x1 This enhanced thread protector is crafted from stainless steel and designed for 13.5x1 threaded barrels. Its unique design not only fits over and protects the crown of your barrel but also...Now: $15.96Was: $19.95 -
On Sale
HK P30L Tactical Barrel - 9mm - 5.06" - Threaded 13.5x1 LH
RCM
Now: $202.50Was: $225.00RCM HK P30L 9mm Tactical Barrel - Threaded 13.5x1 LH Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest threaded replacement barrel for the HK P30L 9mm pistol,...Now: $202.50Was: $225.00 -
On Sale
HK416, MR556 Barrel Nut
HKP HK Parts
Now: $31.96Was: $39.95HK MR556, HK 416 Barrel Nut Or Socket For Barrel - Aluminum A must have repair and replacement part for removal or when you have any work done to your barrel as the barrel nut may become damaged in the removal and installation processes. Made in the USA...Now: $31.96Was: $39.95