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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  • Out Of Stock
    On Sale
    New - MM HK UMP (9mm) Barrel - 16.5 Inch - HKP-02282

    HK UMP Barrel - 9mm - 16.5 Inch

    Michaels Machines

    Now: $494.96
    Was: $549.95
    MM HK UMP (9mm) Barrel - 16.5 Inch   Fluted just like the factory HK barrels with 16 flutes.
    Now: $494.96
    Was: $549.95
    Out Of Stock
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    Now: $494.96
    Was: $549.95
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  • On Sale
    Used - H&K MP5 40/10 Thread Protector Cap - Threaded 14x.75 - USED - HKP-00422-B HK MP5 Thread Protector Cap - 10mm / .40 S&W - Threaded 14x.75 - USED
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    HK MP5 Thread Protector Cap - 10mm / .40 S&W - Threaded 14x.75 - USED

    H&K Heckler & Koch

    Now: $26.21
    Was: $49.95
    H&K Heckler & Koch's MP5 40/10 Thread Protector Cap - Threaded 14x.75 - USED ONLY 4 UNITS AVAILABLE - AS PICTURED Priced for ONE cap - Condition Varies by Unit - Each unit Sold INDIVIDUALLY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL...
    Now: $26.21
    Was: $49.95
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    Now: $26.21
    Was: $49.95
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  • On Sale
    New - H&K MR762 A4 2.4mm Gas Vent Screw - HKP-21952
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    HK MR762 A4 Gas Vent Screw - 2.4mm

    H&K Heckler & Koch

    Now: $26.95
    Was: $29.95
    H&K MR762 A4 2.4mm Gas Vent Screw German 2.4mm 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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  • On Sale
    New - H&K MR762 A4 2.1mm Gas Vent Screw - HKP-21950
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    HK MR762 A4 Gas Vent Screw - 2.1mm

    H&K Heckler & Koch

    Now: $26.95
    Was: $29.95
    H&K MR762 A4 2.1mm Gas Vent Screw German 2.1mm 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
    Was: $29.95
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  • On Sale
    New - H&K MR762 A4 2.0mm Gas Vent Screw - HKP-21944
    Add to Cart

    HK MR762 A4 Gas Vent Screw - 2.0mm

    H&K Heckler & Koch

    Now: $26.95
    Was: $29.95
    H&K MR762 A4 2.0mm Gas Vent Screw German 2.0mm 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
    Was: $29.95
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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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    Qty in Cart: 0
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    Now: $26.95
    Was: $29.95
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  • On Sale
    New - RCM HK MP5K 10mm Barrel - Threaded 14x.75 - HKP-21155 HK MP5K Barrel - 10mm - Threaded 14x.75 with 3 Lug
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    HK MP5K Barrel - 10mm - Threaded 14x.75 with 3 Lug

    RCM

    Now: $251.95
    Was: $279.95
    RCM HK MP5K 10mm Barrel - Threaded 14x.75 Upgrade your MP5K with the RCM HK MP5K 10mm Barrel, featuring a precise 14x1.75 threading for optimal accessory compatibility. Expertly crafted to enhance performance and reliability, this barrel is perfect for...
    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
    Used - H&K HK SL8 20.8" Barrel Complete - Used - HKP-20316 HK SL8 Barrel - 5.56 / .223 - 20.8" - Used - Complete Assembly

    HK SL8 Barrel - 5.56 / .223 - 20.8" - Used - Complete Assembly

    H&K Heckler & Koch

    Now: $404.95
    Was: $449.95
    Factory HK SL8 Barrel, 20.8" used, like new HK German Sl8 barrel with barrel nut, gas block installed. HK SL8-1 HK SL8-6 Rare and hard to find.
    Now: $404.95
    Was: $449.95
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    Now: $404.95
    Was: $449.95
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  • New - H&K MP5K PDW 10mm Barrel - Threaded 9/16x24 - 3-Lug - HKP-02317 HK MP5K PDW Barrel - 10mm - Threaded 9/16x24 with 3 Lug
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    HK MP5K PDW Barrel - 10mm - Threaded 9/16x24 with 3 Lug

    USA

    $299.95
    USA MP5K-PDW 10mm Barrel - Threaded 9/16x24 - 3-Lug This US-made MP5KN-PDW 10mm barrel is a rare barrel. Ideal for enhancing your MP5K-PDW, this barrel combines precision threading with the versatility of a 3-lug mount. Specifications: Made In The...
    $299.95
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    $299.95
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  • On Sale
    New - H&K HK USP Elite 9mm Barrel - Black - HKP-01760 HK USP Elite Barrel - 9mm
    Add to Cart

    HK USP Elite Barrel - 9mm

    H&K Heckler & Koch

    Now: $395.95
    Was: $439.95
    HK USP Elite 9mm Barrel  
    Now: $395.95
    Was: $439.95
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    Now: $395.95
    Was: $439.95
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  • On Sale
    New - RCM HK USPC 9mm Barrel - Non-Threaded - HKP-16704 HK USPC Barrel - 9mm - 3.58" - Non-Threaded
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    HK USPC Barrel - 9mm - 3.58" - Non-Threaded

    RCM

    Now: $179.95
    Was: $199.95
    RCM HK USPC 9mm Barrel - Non-Threaded Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. Each USP Compact 9mm barrel is a drop-in fit for your HK USPC pistol. Specifications: Made in...
    Now: $179.95
    Was: $199.95
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    Now: $179.95
    Was: $199.95
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  • Out Of Stock
    On Sale
    New - HKP HK UMP .45 ACP Barrel - Threaded 16x1 LH - 3-Lug - HKP-18511 HK UMP Barrel - .45 ACP - 8" - Threaded 16x1 LH with 3 Lug - US

    HK UMP Barrel - .45 ACP - 8" - Threaded 16x1 LH with 3 Lug - US

    HKP HK Parts

    Now: $319.96
    Was: $399.95
    HKP H&K UMP .45 ACP Barrel - Threaded 16x1 LH - 3-Lug New USA made .45 ACP 8" barrel for the UMP or Omega firearms. Each barrel is threaded 16x1 RH and 3-Lug tipped. The finest barrel for the UMP .45 ACP on the market. Specifications: Overall Length...
    Now: $319.96
    Was: $399.95
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    Now: $319.96
    Was: $399.95
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