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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HK MR762 A4 Gas Vent Screw - 1.3mm
H&K Heckler & Koch
$32.95H&K MR762 A4 1.3mm Gas Vent Screw The 1.3mm gas vent screw is the standard size installed at the factory on the MR762 A4. Compatible With: MR762 A4$32.95 -
HK MR762 A4 Gas Vent Screw - 2.5mm
H&K Heckler & Koch
$29.95H&K MR762 A4 2.5mm Gas Vent Screw German 2.5mm gas vent screw for MR762 A4. Provides more venting than the factory-installed 1.3mm screw. Compatible With: MR762 A4$29.95 -
HK MR762 A4 Gas Vent Screw - 2.2mm
H&K Heckler & Koch
$29.95H&K MR762 A4 2.2mm Gas Vent Screw German 2.2mm gas vent screw for MR762 A4. Provides more venting than the factory-installed 1.3mm screw. Compatible With: MR762 A4$29.95 -
HK MR762 A4 Gas Vent Screw - 1.9mm
H&K Heckler & Koch
$29.95H&K MR762 A4 1.9mm Gas Vent Screw German 1.9mm gas vent screw for MR762 A4. Provides more venting than the factory-installed 1.3mm screw. Compatible With: MR762 A4$29.95 -
HK21 Sling Mount for Barrel Shroud
H&K Heckler & Koch
$38.95Heckler and Koch Barrel Shroud Sling Mount for your HK21 Features: German-made spring steel sling clip Designed for the HK21 and HK21-A1 barrel shroud Correct HK production part for a secure sling attachment Compatible With: HK21, HK21-A1 HK21E,...$38.95 -
HK P30 Conversion Barrel - .40 S&W to 9mm - Threaded 13.5x1
RCM
$214.95RCM HK P30 .40 to 9mm Conversion Barrel - Threaded - 13.5x1 This 9mm conversion barrel is a drop-in replacement that allows your P30 to shoot the popular 9mm cartridge. Comes with a thread protector. Each barrel is made from ordnance-grade steel,...$214.95 -
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...$279.95 -
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,...$212.50 -
Out Of Stock
HK VP9 to HK VP9 Long Slide Conversion Kit
H&K Heckler & Koch
$0.00H&K HK VP9 to HK VP9 Long Slide Conversion Kit - Black Compatible With: HK VP9 Features: Slide assembly with rear serrations, charging supports, and forward serrations / lightening cuts O-ring enhanced barrel, optimized and fit for...$0.00 -
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...$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...$0.00 -
Out Of Stock
HK416, MR556 Barrel Conversion Kit - 9" - HK416C Style
HKP HK Parts
$0.00MR556 & HK416 Barrel 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...$0.00