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.
- Product
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HK MP5, MP5K Thread Protector - .40 S&W - Threaded 9/16x24
HKP HK Parts
$19.95HKP .40 S&W Thread Protector for MP5 and MP5K - Threaded 9/16x24 HKP steel thread protector for .40 S&W and 10mm barrels threaded 9/16x24. Precision machined to help protect barrel threads from...HKP-22885$19.95 -
On Sale
HK USP Tactical Barrel - .40 S&W - 4.9"- Threaded 14.5x1 LH - BLEMISHED
H&K Heckler & Koch
Now: $219.09Was: $299.95H&K USP .40 S&W Tactical Barrel - Threaded 14.5x1 LH - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE...HKP-00328-BNow: $219.09Was: $299.95 -
HK21, HK11 Barrel with Grip Handle and Flash Hider - 17.7" - MM
Michaels Machines
$1,478.95MM HK21 Barrel - 17.7" - CHF Michael's Machines HK21 barrels are crafted in the US from 41V50 CHF blanks and fully nitrided for optimal corrosion resistance. Each barrel ships complete with a factory...HKP-22534$1,478.95 -
On Sale
HK P30, P30S Barrel - 9mm - 3.85" - BLEMISHED
H&K Heckler & Koch
Now: $172.46Was: $269.95HK P30, P30S Barrel - 9mm - 3.85" - BLEMISHED ONLY 3 UNITS AVAILABLE - VARYING CONDITION SHOWN - SOLD INDIVIDUALLY DOESHKP-01828-BNow: $172.46Was: $269.95 -
On Sale
HK Mark 23 Barrel - Threaded 16x1 RH - USED
H&K Heckler & Koch
Now: $337.46Was: $599.95H&K Mark 23 .45 ACP Barrel - Threaded 16x1 RH - USED A great replacement item for a now out-of-production pistol. New HK German mark 23 barrel threaded with the factory correct 16x1 RH thread. Get...HKP-01038-USEDNow: $337.46Was: $599.95 -
HK91, G3 Caliber Conversion Kit - .22LR
H&K Heckler & Koch
$1,895.95Heckler and Koch HK G3, HK91 .22LR Caliber Conversion Kit - LIKE NEW SOLD AS IS. NO RETURNS. Convert any HK91 or HK G3 rifle to cycle .22LR ammunition with this genuine HK caliber conversion kit...HKP-22093$1,895.95 -
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,...HKP-21805$989.95 -
On Sale
HK MP5K Barrel - 10mm - Threaded 14x.75 with 3 Lug
RCM
Now: $188.46Was: $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...HKP-21155Now: $188.46Was: $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...HKP-02317$299.95 -
Out Of Stock
HK P30SK, P2000SK Fluted Barrel - 9mm - Threaded 13.5x1 - Black
HKP HK Parts
$229.95HK P30SK & P2000SK 9mm Threaded Barrel - 13.5x1 Metric - FlutedEach barrel is finely and painstakingly made from ordnance grade steel, heat treated and finished inside and out in the ultra-...HKP-16703$229.95 -
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...HKP-18511$399.95