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 StockOn Sale
HK USPC Barrel - .45 ACP - 4.47" - Threaded .578x28 RH
RCM
Now: $225.00Was: $250.00RCM HK USPC .45 ACP Barrel - Threaded .578x28 RH This HK USPC .45 ACP & USPC Tactical .45 ACP threaded barrel is designed for use with various flash hiders and sound suppressors. It features the common US .578x28 right-hand threads, ensuring...Now: $225.00Was: $250.00 -
On Sale
HK45C, HK45CT Barrel - .45 ACP - 4.5" - Threaded 16x1 LH
H&K Heckler & Koch
Now: $305.95Was: $339.95Heckler and Koch HK45 Compact Tactical Barrel - Threaded 16x1 LH New HK German HK45C threaded tactical barrel. A drop in barrel for the HK45 compact firearm. Features: Heckler and Koch Genuine Part Threaded For Use With Suppressors Threaded 16x1 LH Cold...Now: $305.95Was: $339.95 -
On Sale
HK32, HK21, HK11 Barrel - 7.62 / .308 - 14.5"
RCM
Now: $616.46Was: $684.95RCM HK21 and HK11 Barrel - 14.5" RCM HK11 barrels are expertly crafted from mil-spec 41V50 CHF blanks and are fully salt bath nitrided, delivering exceptional wear and corrosion resistance. These hybrid barrels feature an E cut barrel face and are...Now: $616.46Was: $684.95 -
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, HK45T Barrel - .45 ACP - 5.11" - 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, USPCT Barrel - .45 ACP - 4.46" - 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 - Threaded 1/2x28 with 3 Lug
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