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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  • New - H&K MP5K PDW 10mm Barrel - Threaded 9/16x24 - 3-Lug - HKP-02317 HK MP5K-PDW Barrel - 10mm - 3 Lug - Threaded 9/16x24
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    HK MP5K-PDW Barrel - 10mm - 3 Lug - Threaded 9/16x24

    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 - HK P30, P30S .40 Barrel - Black - HKP-02412 HK P30 Barrel - .40 S&W
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    HK P30 Barrel - .40 S&W

    H&K Heckler & Koch

    Now: $247.45
    Was: $274.95
    HK P30, P30S .40 Barrel New HK German P30 standard factory length. 
    Now: $247.45
    Was: $274.95
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    Now: $247.45
    Was: $274.95
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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 - 3 Lug - Threaded 16x1 LH - US

    HK UMP Barrel - .45 ACP - 3 Lug - Threaded 16x1 LH - 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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  • On Sale
    New - RCM HK53K (5.56/.223) Barrel - Threaded 15x1 RH - HKP-02400 HK53K Barrel - 5.56 / .223 - 5.3" - Threaded 15x1 RH
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    HK53K Barrel - 5.56 / .223 - 5.3" - Threaded 15x1 RH

    RCM

    Now: $148.45
    Was: $164.95
    RCM HK53K (5.56/.223) Barrel - Threaded 15x1 RH US made 922r compliant HK53K barrel.  Specifications: Made In The USA Threaded 15x1 RH Counts As 1 US Made 922r Compliant Part Cold Hammer Forged Steel (CHF) Built To HK Germany...
    Now: $148.45
    Was: $164.95
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    Now: $148.45
    Was: $164.95
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  • On Sale
    New - H&K HK MR556 A4 Gas Block- Incomplete - HKP-22087 HK MR556 A4 Gas Block- Incomplete
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    HK MR556 A4 Gas Block- Incomplete

    H&K Heckler & Koch

    Now: $168.30
    Was: $187.00
    H&K HK MR556 A4 Gas Block - Incomplete The H&K HK MR556 A4 Gas Block is a high-quality, precision-machined component designed for the MR556 A4 rifle. It houses the gas system that directs gas from the barrel to cycle the action. Compatible...
    Now: $168.30
    Was: $187.00
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    Now: $168.30
    Was: $187.00
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  • On Sale
    New - H&K MP5 40/10 German Bulged Barrel - BLEMISHED - HKP-99174 HK MP5 Barrel - 10mm / .40 S&W - Bulged - BLEMISHED
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    HK MP5 Barrel - 10mm / .40 S&W - Bulged - BLEMISHED

    H&K Heckler & Koch

    Now: $57.95
    Was: $579.95
    Heckler and Koch MP5 40/10 German Bulged Barrel - BLEMISHED MP5 40/10 BULGED barrel.  Can be cut down and repurposed for a custom barrel length application. Compatible With: HK MP5 10mm / .40 S&W THIS CLOSEOUT PART IS NOT ELIGIBLE FOR RETURN,...
    Now: $57.95
    Was: $579.95
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    Now: $57.95
    Was: $579.95
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  • On Sale
    New - H&K MR762 A4 1.3mm Gas Vent Screw - HKP-21955
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    HK MR762 A4 Gas Vent Screw - 1.3mm

    H&K Heckler & Koch

    Now: $29.66
    Was: $32.95
    H&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
    Now: $29.66
    Was: $32.95
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    Qty in Cart: 0
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    Now: $29.66
    Was: $32.95
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  • On Sale
    New - H&K MR762 A4 2.5mm Gas Vent Screw - HKP-21951
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    HK MR762 A4 Gas Vent Screw - 2.5mm

    H&K Heckler & Koch

    Now: $26.95
    Was: $29.95
    H&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
    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 - H&K MR762 A4 2.2mm Gas Vent Screw - HKP-21949
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    HK MR762 A4 Gas Vent Screw - 2.2mm

    H&K Heckler & Koch

    Now: $26.95
    Was: $29.95
    H&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
    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 - H&K MR762 A4 1.6mm Gas Vent Screw - HKP-21947
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    HK MR762 A4 Gas Vent Screw - 1.6mm

    H&K Heckler & Koch

    Now: $26.95
    Was: $29.95
    H&K MR762 A4 1.6mm Gas Vent Screw German 1.6mm 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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    Qty in Cart: 0
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    Now: $26.95
    Was: $29.95
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  • On Sale
    New - H&K MR762 A4 2.3mm Gas Vent Screw - HKP-21943
    Add to Cart

    HK MR762 A4 Gas Vent Screw - 2.3mm

    H&K Heckler & Koch

    Now: $26.95
    Was: $29.95
    H&K MR762 A4 2.3mm Gas Vent Screw German 2.3mm 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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    Qty in Cart: 0
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    Now: $26.95
    Was: $29.95
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