Barrels

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
    New - H&K MR762 A4 1.9mm Gas Vent Screw - HKP-21942
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    HK MR762 A4 Gas Vent Screw - 1.9mm

    H&K Heckler & Koch

    Now: $26.95
    Was: $29.95
    H&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
    Now: $26.95
    Was: $29.95
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    Now: $26.95
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  • On Sale
    New - H&K MR762 A4 1.8mm Gas Vent Screw - HKP-21941
    Add to Cart

    HK MR762 A4 Gas Vent Screw - 1.8mm

    H&K Heckler & Koch

    Now: $26.95
    Was: $29.95
    H&K MR762 A4 1.8mm Gas Vent Screw German 1.8mm gas vent screw for MR762 A4. Provides more venting than the factory-installed 1.3mm screw. Compatible With: HK MR762 A4
    Now: $26.95
    Was: $29.95
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    Now: $26.95
    Was: $29.95
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  • On Sale
    New - H&K MR762 A4 1.4mm Gas Vent Screw - HKP-21940
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    HK MR762 A4 Gas Vent Screw - 1.4mm

    H&K Heckler & Koch

    Now: $26.95
    Was: $29.95
    H&K MR762 A4 1.4mm Gas Vent Screw German 1.4mm gas vent screw for MR762 A4. Provides more venting than the factory-installed 1.3mm screw. COMPATABLE WITH: MR762 A4
    Now: $26.95
    Was: $29.95
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    Now: $26.95
    Was: $29.95
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  • On Sale
    New - H&K HK21 Shroud Sling Mount - HKP-21820 HK21 Sling Mount for Barrel Shroud
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    HK21 Sling Mount for Barrel Shroud

    H&K Heckler & Koch

    Now: $35.06
    Was: $38.95
    Heckler 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,...
    Now: $35.06
    Was: $38.95
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    Now: $35.06
    Was: $38.95
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  • On Sale
    New - RCM HK P30 .40 to 9mm Conversion Barrel - Threaded - 13.5x1 - HKP-21786 HK P30 Conversion Barrel - .40 S&W to 9mm - Threaded 13.5x1
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    HK P30 Conversion Barrel - .40 S&W to 9mm - Threaded 13.5x1

    RCM

    Now: $193.45
    Was: $214.95
    RCM 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,...
    Now: $193.45
    Was: $214.95
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    Now: $193.45
    Was: $214.95
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  • On Sale
    New - RCM HK MP5K .40 S&W Barrel - Threaded 14x.75 - 3-Lug - HKP-21585 HK MP5K Barrel - .40 S&W - Threaded 14x.75 with 3 Lug
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    HK MP5K Barrel - .40 S&W - Threaded 14x.75 with 3 Lug

    RCM

    Now: $251.95
    Was: $279.95
    RCM 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...
    Now: $251.95
    Was: $279.95
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    Now: $251.95
    Was: $279.95
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  • Out Of Stock
    On Sale
    New - RCM HK VP40 .40 S&W Tactical Barrel - Threaded 9/16x24 - HKP-17370 HK VP40 Tactical Barrel - .40 S&W - 4.45" - Threaded 9/16x24

    HK VP40 Tactical Barrel - .40 S&W - 4.45" - Threaded 9/16x24

    RCM

    Now: $191.25
    Was: $212.50
    RCM 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,...
    Now: $191.25
    Was: $212.50
    Out Of Stock
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    Now: $191.25
    Was: $212.50
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  • Out Of Stock
    On Sale
    New - HKP 9mm Titanium Thread Protector - Threaded 13.5x1 LH - HKP-19724 HK VP9 Thread Protector - 13.5x1 - LH - Titanium

    HK VP9 Thread Protector - 13.5x1 - LH - Titanium

    HKP HK Parts

    Now: $23.96
    Was: $29.95
    HKP 9mm Titanium Thread Protector - Threaded 13.5x1 LH This billet machined titanium and Cerakoted enhanced thread protector is made for use with all 13.5x1 LH threaded barrels. This unique design will fit over and protect the crown of your barrel for...
    Now: $23.96
    Was: $29.95
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    Now: $23.96
    Was: $29.95
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  • Out Of Stock
    New - H&K HK USP .45 ACP Barrel - Match - Black - HKP-17508 HK USP .45 ACP Barrel - Match

    HK USP .45 ACP Barrel - Match

    H&K Heckler & Koch

    $0.00
    H&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...
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  • Out Of Stock
    New - H&K USP 9mm Tactical Barrel - Threaded 13.5x1 LH - HKP-00797 HK USP Tactical Barrel - 9mm- Threaded 13.5x1 LH

    HK USP Tactical Barrel - 9mm- Threaded 13.5x1 LH

    H&K Heckler & Koch

    $0.00
    Heckler 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...
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  • Out Of Stock
    New - HKP HK MR556/416 9" HK416C Style Barrel Conversion Kit - HKP-18401 HK416, MR556 9" HK416C Style Barrel Conversion Kit

    HK416, MR556 9" HK416C Style Barrel Conversion Kit

    HKP HK Parts

    $0.00
    MR556 & 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...
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  • Out Of Stock
    On Sale
    New - HKP HK UMP (9mm) Standard Barrel - HKP-18640 HK UMP (9mm) Standard Barrel

    HK UMP (9mm) Standard Barrel

    HKP HK Parts

    Now: $239.96
    Was: $299.95
    HK UMP 9mm Barrel US made replica of the HK UMP 9mm barrel. Counts as one US made compliant part as an added bonus.
    Now: $239.96
    Was: $299.95
    Out Of Stock
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    Now: $239.96
    Was: $299.95
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