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 1.4mm 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 - HK MR556 16" Complete Upper Barrel - HKP-21805 HK MR556 Barrel - 5.56 / .223 - 16" - Complete Upper
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    HK MR556 Barrel - 5.56 / .223 - 16" - Complete Upper

    H&K Heckler & Koch

    Now: $890.96
    Was: $989.95
    HK 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, guaranteeing top-notch quality. This barrel is the ultimate...
    Now: $890.96
    Was: $989.95
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    Now: $890.96
    Was: $989.95
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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 - H&K HK 940 .30-06 Rifle Barrel - HKP-21605 HK 940 Barrel - .30-06
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    HK 940 Barrel - .30-06

    H&K Heckler & Koch

    Now: $412.46
    Was: $948.95
    Heckler 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...
    Now: $412.46
    Was: $948.95
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    Now: $412.46
    Was: $948.95
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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 - HK G36E Barrel - HKP-19273 HK G36E Barrel - 5.56 / .223 - 19"

    HK G36E Barrel - 5.56 / .223 - 19"

    USA

    Now: $449.95
    Was: $499.95
    Barrel - USA - HK G36E Brand new HK G36E barrel. Specifications: Barrel length 19"
    Now: $449.95
    Was: $499.95
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    Now: $449.95
    Was: $499.95
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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
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    Now: $191.25
    Was: $212.50
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  • On Sale
    Used - H&K HK USC 45 Barrel - Used - HKP-20471 HK USC 45 Barrel - .45 ACP - Used
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    HK USC 45 Barrel - .45 ACP - Used

    H&K Heckler & Koch

    Now: $626.36
    Was: $695.95
    Barrel - HK USC 45 in Exc + shape HK German factory USC 45 barrel in excellent + condition. Rare and hard to find. 
    Now: $626.36
    Was: $695.95
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    Now: $626.36
    Was: $695.95
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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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  • On Sale
    New - H&K MP5 .40 S&W Factory Barrel - Threaded - 3-Lug - HKP-19349 HK MP5 Barrel - .40 S&W - Threaded with 3 Lug - Factory
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    HK MP5 Barrel - .40 S&W - Threaded with 3 Lug - Factory

    H&K Heckler & Koch

    Now: $1,345.50
    Was: $1,495.00
    H&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...
    Now: $1,345.50
    Was: $1,495.00
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    Now: $1,345.50
    Was: $1,495.00
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  • Out Of Stock
    New - H&K HK USP .45 ACP Barrel - Match - Black - HKP-17508 HK USP Barrel - .45 ACP - 6.02" - Match

    HK USP Barrel - .45 ACP - 6.02" - 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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