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 UMP Barrel - 9mm - Threaded 1/2x28 RH with 3 Lug - BLEMISHED
OMEGA
Now: $259.46Was: $449.95HK UMP9 Barrel - Threaded 1/2x28 - 3-Lug 1 UNIT AVAILABLE - AS PICTURED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Factory-style barrel for HK UMP9 pattern...HKP-99367Now: $259.46Was: $449.95 -
On Sale
HK94 Barrel - Sight Tower - Non-Threaded - LIKE NEW
H&K Heckler & Koch
Now: $374.96Was: $599.95Heckler and Koch HK94 Barrel with Sight Tower - Non-Threaded - LIKE NEW ONLY 1 UNIT AVAILABLE Factory-style barrel designed for HK94 pattern firearms. This non-threaded barrel is suitable for replacement or build use and maintains the correct profile and...HKP-99366Now: $374.96Was: $599.95 -
On Sale
HK21E, HK11A1, HK11E Barrel - 7.62 / .308 - 17.7" - Threaded 15x1
Michaels Machines
Now: $745.21Was: $1,168.95MM HK21E, HK11A1, HK11E Barrel - 17.7" Michael's Machines HK21E barrels are crafted in the US from 41V50 CHF blanks and fully nitrided for optimal corrosion resistance. Barrels come stripped, requiring a flash hider or muzzle device and barrel handle...HKP-22333Now: $745.21Was: $1,168.95 -
HK MP5K Barrel - .40 S&W - Threaded 14x.75 with 3 Lug
RCM
$279.95RCM HK MP5K .40 S&W Barrel - Threaded 14x.75 - 3-Lug This is the ultimate US-made barrel for any new or conversion build for the MP5K .40 cal. Crafted from top-grade CHF 41v40 material, it’s machined to impeccable standards. With the correct...HKP-21585$279.95 -
Out Of Stock
HK G36E Barrel - 5.56 / .223 - 19"
USA
$499.95Barrel - USA - HK G36E Brand new HK G36E barrel. Specifications: Barrel length 19"HKP-19273$499.95 -
HK G36K Piston Rod - Incomplete
H&K Heckler & Koch
$69.95Heckler and Koch Incomplete Piston Rod for HK G36K Constructed from a black finished steel, this incomplete factory original part from HK is made in Germany and designed for HK G36K rifle models chambered in 5.56 / .223 This rod is the main component of...HKP-16345$69.95 -
Out Of Stock
HK VP40 Tactical Barrel - .40 S&W - 4.45" - Threaded 9/16x24
RCM
$212.50RCM HK VP40 .40 S&W Tactical Barrel - Threaded 9/16x24 Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest threaded barrel for the HK VP40 .40 S&W pistol,...HKP-17370$212.50 -
HK MP5 Barrel - .40 S&W - Threaded with 3 Lug - Factory
H&K Heckler & Koch
$1,495.00H&K MP5 .40 S&W Factory Barrel - Threaded - 3-Lug New MP5 .40 S&W barrel. Factory-installed sight tower with sight/sling eyelets and factory finish. Specifications: Threaded 3-Lug Compatible With: HK MP5 .40 S&W Rare & hard to find...HKP-19349$1,495.00 -
Out Of Stock
HK USP Barrel - .45 ACP - 6.02" - Match
H&K Heckler & Koch
$0.00H&K HK USP .45 ACP Barrel - Match The real deal factory HK Match barrel. This barrel will fit all HK USP .45 full size models. If you want a longer barrel for your HK USP 45 or USP 45 Tactical this is a great option for an extended length or for use...HKP-17508$0.00 -
Out Of Stock
HK USP Tactical Barrel - 9mm- Threaded 13.5x1 LH
H&K Heckler & Koch
$0.00Heckler and Koch HK USP 9mm Tactical Barrel - Threaded 13.5x1 LH This barrel is a drop-in replacement barrel for standard full-size USP 9mm Pistols. Cold hammer forged, polygonal rifled, and made in Germany. Specifications: Threaded 13.5x1 LH Overall...HKP-00797$0.00 -
Out Of Stock
HK416, MR556 Upper Conversion Kit - Threaded 1/2x28, - 5.56x45 / .223
HKP HK Parts
$699.95H&K MR556 & HK416 (5.56x45/.223) Upper Conversion Kit - Threaded 1/2x28 Finally an answer for all of those that have been wanting a 14.5" upper for an HK416 or MR556. This conversion kit adds an upper or a barrel option for your MR556, CR556...HKP-17877$699.95 -
Out Of Stock
HK416, MR556 Upper Conversion Kit - 9" - HK416C Style
HKP HK Parts
$899.95MR556 and HK416 Upper Conversion Kit - 9" - HK 416C Style Finally an answer for all of those that have been wanting as close to the original, rare unicorn of a find HK 416C 9" barrel conversion kit for 416 or MR556. Each conversion kit upper or barrel...HKP-18674$899.95