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 - HK MP5K .40 S&W 3-Lug Barrel Thread Protector - Threaded 9/16x24 - HKP-02318 HK MP5K Barrel - .40 S&W - Threaded 9/16x24 with 3 Lug
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    HK MP5K Barrel - .40 S&W - Threaded 9/16x24 with 3 Lug

    HKP HK Parts

    Now: $199.95
    Was: $299.95
    HK MP5K .40 S&W 3-Lug Barrel with Thread Protector - Threaded 9/16x24 3-lugged Barrel with a 9/16x24 thread protector.  Specifications: 3-lugged barrel Includes 9/16x24 thread protector Compatible With: HK MP5K .40 S&W
    HKP-02318
    Now: $199.95
    Was: $299.95
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    Qty in Cart: 0
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    Now: $199.95
    Was: $299.95
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  • On Sale
    Used - H&K G3/91 (.22LR) Caliber Conversion Kit - BLEMISHED - HKP-01147-B HK91, G3 Caliber Conversion Kit - .22LR - BLEMISHED
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    HK91, G3 Caliber Conversion Kit - .22LR - BLEMISHED

    H&K Heckler & Koch

    Now: $545.95
    Was: $945.95
    Heckler and Koch HK G3, HK91 .22LR Caliber Conversion Kit - BLEMISHED THESE KITS INCLUDE A BENT BARREL AND ONE MAGAZINE. BLEMISHED PARTS ARE SOLD AS IS. THIS KIT IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Convert any HK91 or HK...
    HKP-01147-B
    Now: $545.95
    Was: $945.95
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    Qty in Cart: 0
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    Now: $545.95
    Was: $945.95
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  • New - H&K HK MP5/SP5 3 Lug Barrel - New Old Stock - Rare - HKP-21662 HK MP5, SP5 Barrel - 9mm - 3 Lug - New Old Stock - Rare
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    HK MP5, SP5 Barrel - 9mm - 3 Lug - New Old Stock - Rare

    H&K Heckler & Koch

    $987.95
    H&K HK MP5/SP5 3 Lug Barrel - New Old Stock - Rare Factory German date coded with H&K logo. This new old stock 3-lug item is incredibly rare and in pristine condition. An absolute gem in the market. We only have a limited number available, and...
    HKP-21662
    $987.95
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    Qty in Cart: 0
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    $987.95
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  • On Sale
    New - RCM HK MP5 .40 S&W Barrel - Threaded 14x.75 - 3-Lug - HKP-21582 HK MP5 Barrel - .40 S&W - 8.85" - Threaded 14x.75 with 3 Lug
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    HK MP5 Barrel - .40 S&W - 8.85" - Threaded 14x.75 with 3 Lug

    RCM

    Now: $223.95
    Was: $279.95
    RCM HK MP5 .40 S&W Barrel - Threaded 14x.75 - 3-Lug This is the ultimate US-made barrel for any new or conversion build for the MP5 .40 cal. Crafted from top-grade CHF 41v40 material, it’s machined to impeccable standards. With the correct...
    HKP-21582
    Now: $223.95
    Was: $279.95
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    Qty in Cart: 0
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    Now: $223.95
    Was: $279.95
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  • New - H&K HK 93, HK 33 Barrel, NIW 1 in 7, RARE - HKP-19344 HK33, HK93, Barrel -  5.56 / .223 - 16" - 1 in 7 Twist Rate - RARE
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    HK33, HK93, Barrel - 5.56 / .223 - 16" - 1 in 7 Twist Rate - RARE

    H&K Heckler & Koch

    $1,887.95
    HK33, HK93, Barrel, RARE 1 in 7 Twist Rate New HK93, 33 barrel featuring the uber rare 1 in 7 twist rate.  The barrel features the factory pinned flash hider to achieve the non-SBR legal 16" overall length. Includes factory-installed sight tower...
    HKP-19344
    $1,887.95
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    Qty in Cart: 0
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    Price:
    $1,887.95
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  • On Sale
    New - GSG9 UMP 9mm Barrel - Threaded 1/2x28 - 3-Lug - HKP-02281
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    HK UMP Barrel - 9mm - Threaded 1/2x28 with 3 Lug

    GSG9

    Now: $259.95
    Was: $349.95
    GSG9 UMP (9mm) Barrel - Threaded 1/2x28 - 3-Lug This barrel is the perfect addition to your UMP conversion as it includes the 3-lug and threaded 1/2x28 end of the barrel for use with suppressors or factory HK 3-lug flash hiders. Specifications: Threaded...
    HKP-02281
    Now: $259.95
    Was: $349.95
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    Now: $259.95
    Was: $349.95
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  • On Sale
    HK21, HK11 Barrel with Grip Handle and Flash Hider - 17.7" HK21, HK11 Barrel with Grip Handle and Flash Hider - 17.7"
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    HK21, HK11 Barrel with Grip Handle and Flash Hider - 17.7"

    RCM

    Now: $871.95
    Was: $1,089.95
    HK21, HK11 Barrel with Grip Handle and Flash Hider - 17.7" RCM HK21 barrels are crafted from 41V50 CHF blanks and fully nitrided for optimal corrosion resistance. Each barrel ships complete with a new factory flash hider and fully assembled handle...
    HKP-22533
    Now: $871.95
    Was: $1,089.95
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    Qty in Cart: 0
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    Now: $871.95
    Was: $1,089.95
    Subtotal:
  • HK MR762 A4 Barrel - 16.5" - Proofed HK MR762 A4 Barrel - 16.5" - Proofed
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    HK MR762 A4 Barrel - 16.5" - Proofed

    H&K Heckler & Koch

    $459.95
    HK MR762 A4 Barrel - 16.5" - Proofed Factory proofed HK MR762 A4 16.5" barrel with standard 5/8x24 RH thread pitch. Compatible With: HK MR762 A4
    HKP-22453
    $459.95
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    Qty in Cart: 0
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    $459.95
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  • On Sale
    New - RCM HK VP40 to 9mm Conversion Barrel - Threaded - 13.5x1 - HKP-21790 HK VP40 Conversion Barrel - .40 S&W to 9mm - Threaded - 13.5x1
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    HK VP40 Conversion Barrel - .40 S&W to 9mm - Threaded - 13.5x1

    RCM

    Now: $171.95
    Was: $214.95
    RCM HK VP40 to 9mm Conversion Barrel - Threaded - 13.5x1 This 9mm conversion barrel is a drop-in replacement that allows your VP40 to shoot the popular 9mm cartridge. Comes with a thread protector. Each barrel is made from ordnance-grade steel,...
    HKP-21790
    Now: $171.95
    Was: $214.95
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    Qty in Cart: 0
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    Now: $171.95
    Was: $214.95
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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: $181.95
    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,...
    HKP-21786
    Now: $181.95
    Was: $214.95
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    Qty in Cart: 0
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    Now: $181.95
    Was: $214.95
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  • Out Of Stock
    New - B&T TP9 130mm 9mm Barrel - Black - HKP-17305

    B&T TP9 Barrel - 9mm - 130mm

    B&T Brugger & Thomet

    $449.95
    Swiss B&T manufactured 130mm TP9 9mm Barrel Assembly Factory B&T replacement barrel for the TP9. Made in Switzerland. Compatible With: B&T TP9
    HKP-17305
    $449.95
    Out Of Stock
    Qty in Cart: 0
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    Price:
    $449.95
    Subtotal:
  • 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: $169.95
    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...
    HKP-16704
    Now: $169.95
    Was: $199.95
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    Qty in Cart: 0
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    Now: $169.95
    Was: $199.95
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