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 Stock
HK USP9 Expert Barrel
H&K Heckler & Koch
$564.95Heckler and Koch Barrel for USP9 Expert Manufactured from steel to HK’s OEM specifications, this barrel delivers the accuracy, reliability, and fit expected from a genuine HK replacement component. Ideal for replacing a worn barrel or...HKP-22491$564.95 -
HK21 Barrel - 17.7" - Threaded 15X1 - 7.62x51 / .308
Michaels Machines
$1,189.95MM 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. Barrels come stripped, requiring a flash hider/muzzle device and barrel handle assembly (all...HKP-22332$1,189.95 -
HK MR556 A4 Gas Block- Incomplete
H&K Heckler & Koch
$187.00H&K HK MR556 A4 Gas Block - Incomplete The H&K HK MR556 A4 Gas Block is a high-quality, precision-machined component designed for the MR556 A4 rifle. It houses the gas system that directs gas from the barrel to cycle the action. Compatible...HKP-22087$187.00 -
On Sale
HK 940 Barrel - .30-06
H&K Heckler & Koch
Now: $412.46Was: $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: $412.46Was: $948.95 -
Out Of Stock
HK G36K Barrel - 5.56 / .223 - 12.5"
HKP HK Parts
$499.95HKP HK G36K Barrel Brand new HK G36K barrel made from 416 stainless steel and nitrided, uninstalled & unfired. The G36K barrel uses a factory German or USA spec G36K/G36C gas block. Counts as one USA made complaint part. Perfect for the SL8/G36 style...HKP-18194$499.95 -
HK P30 Barrel - .40 S&W - 3.85"
H&K Heckler & Koch
$274.95HK P30, P30S .40 Barrel New HK German P30 standard factory length.HKP-02412$274.95 -
Out Of Stock
HK UMP Barrel - 9mm - 16.5 Inch
Michaels Machines
$549.95MM HK UMP (9mm) Barrel - 16.5 Inch Fluted just like the factory HK barrels with 16 flutes.HKP-02282$549.95 -
PTR PDW Barrel - 7.62 / .308 - 9" - SBR
PTR
$189.99PTR PDW .308 Pistol or SBR Barrel- USA This part comes new in the white, never installed, and ready for the HK project. Features: Just under 9" inches long 1:10 twist U.S. made barrel counts as one 922r compliant part Please Note: Front sight towers...HKP-02788$189.99 -
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 damage when a muzzle device or suppressor is not...HKP-22885$19.95 -
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 new flash hider and fully assembled handle comprised...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 DOES NOT HAVE DATE CODE COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL...HKP-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 that replacement or factory new spare barrel while...HKP-01038-USEDNow: $337.46Was: $599.95