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
HK MP5 Barrel - 10mm / .40 S&W - Bulged - BLEMISHED
H&K Heckler & Koch
Now: $189.95Was: $579.95Heckler and Koch MP5 40/10 German Bulged Barrel - BLEMISHED MP5 40/10 BULGED barrel. Can be cut down and repurposed for a custom barrel length application. Compatible With: HK MP5 10mm / .40 S&W THIS CLOSEOUT PART IS NOT ELIGIBLE FOR RETURN,...HKP-99174Now: $189.95Was: $579.95 -
On Sale
CQT FX Simunition Conversion Kit for MP5 - 9mm Blue - Spare Part Lot - BLEMISHED
Simunition
Now: $87.95Was: $319.95CQT FX Simunition Conversion Kit for MP5 - 9mm Blue - Spare Part Lot - BLEMISHED SHADES OF BLUE MAY VARY The CQT FX Simunition conversion spare parts lot from original kits. Everything pictured is included. THIS CLOSEOUT PART IS NOT...HKP-99054-BNow: $87.95Was: $319.95 -
HK MR556 Barrel - 5.56 / .223 - 16" - Complete Upper
H&K Heckler & Koch
$989.95HK MR556 16" Complete Upper Barrel Factory HK MR556 16" barrel, complete with a factory-installed barrel nut, gas block and flash hider. Every component is brand new and meticulously crafted, guaranteeing top-notch quality. This barrel is the ultimate...HKP-21805$989.95 -
On Sale
HK 940 Barrel - .30-06
H&K Heckler & Koch
Now: $549.95Was: $948.95Heckler and Koch HK 940 .30-06 Rifle Barrel Genuine new HK 940 .30-06 barrel featuring date code and Ulm antler proof. These barrels are unfired and fully nitrided for a lifetime of use. These barrels are very rare and no longer in production...HKP-21605Now: $549.95Was: $948.95 -
HK MP5K Barrel - 10mm - Threaded 14x.75 with 3 Lug
RCM
$279.95RCM HK MP5K 10mm Barrel - Threaded 14x.75 Upgrade your MP5K with the RCM HK MP5K 10mm Barrel, featuring a precise 14x1.75 threading for optimal accessory compatibility. Expertly crafted to enhance performance and reliability, this barrel is perfect for...HKP-21155$279.95 -
Out Of Stock
HK SL8 Barrel - 5.56 / .223 - 20.8" - Used - Complete Assembly
H&K Heckler & Koch
$449.95Factory HK SL8 Barrel, 20.8" used, like new HK German Sl8 barrel with barrel nut, gas block installed. HK SL8-1 HK SL8-6 Rare and hard to find.HKP-20316$449.95 -
HK MP5K PDW Barrel - 10mm - Threaded 9/16x24 with 3 Lug
USA
$299.95USA MP5K-PDW 10mm Barrel - Threaded 9/16x24 - 3-Lug This US-made MP5KN-PDW 10mm barrel is a rare barrel. Ideal for enhancing your MP5K-PDW, this barrel combines precision threading with the versatility of a 3-lug mount. Specifications: Made In The...HKP-02317$299.95 -
Out Of Stock
HK UMP Barrel - .45 ACP - 8" - Threaded 16x1 LH with 3 Lug - US
HKP HK Parts
$399.95HKP H&K UMP .45 ACP Barrel - Threaded 16x1 LH - 3-Lug New USA made .45 ACP 8" barrel for the UMP or Omega firearms. Each barrel is threaded 16x1 RH and 3-Lug tipped. The finest barrel for the UMP .45 ACP on the market. Specifications: Overall Length...HKP-18511$399.95 -
HK53K Barrel - 5.56 / .223 - 5.3" - Threaded 15x1 RH
RCM
$164.95RCM HK53K (5.56/.223) Barrel - Threaded 15x1 RH US made 922r compliant HK53K barrel. Specifications: Made In The USA Threaded 15x1 RH Counts As 1 US Made 922r Compliant Part Cold Hammer Forged Steel (CHF) Built To HK Germany...HKP-02400$164.95 -
HK45 Thread Protector - .578x28 RH - Titanium
HKP HK Parts
$19.95HKP HK45 .45 ACP Titanium Thread Protector - Threaded .578x28 RH US-made titanium thread protector designed for .45 ACP barrels threaded .578x28 right-hand. Features a fully hooded profile that extends over the muzzle to protect exposed threads and the...HKP-22522$19.95 -
HK UMP Barrel Pin Screw
OMEGA
$13.95Omega UMP Barrel Pin Screw Barrel pin Screw that replaces barrel pins on Omega Gideon Shadow Compatible With: HK UMP HK USC Omega GSHKP-22514$13.95 -
On Sale
HK Mark 23 Tactical Barrel - .45 ACP - 6.02" - Threaded .578x28 RH - USED
RCM
Now: $212.95Was: $289.95HK Mark 23 Tactical Barrel - .45 ACP - 6.02" - Threaded .578x28 RH - USED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. This HK Mark 23 tactical threaded barrel designed for compatibility with various...HKP-17444-USEDNow: $212.95Was: $289.95