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 - RCM HK MP5K 10mm Barrel - Threaded 9/16x24 - HKP-21157 HK MP5K Barrel - 10mm - Threaded 9/16x24 with 3 Lug
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    HK MP5K Barrel - 10mm - Threaded 9/16x24 with 3 Lug

    RCM

    $279.95
    RCM HK MP5K 10mm Barrel - Threaded 9/16x24 Enhance the performance of your MP5K with the RCM HK MP5K 10mm Barrel. This barrel is precision engineered for superior accuracy and durability, making it...
    HKP-21157
    $279.95
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    $279.95
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  • 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

    $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...
    HKP-22087
    $187.00
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    $187.00
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  • New - HK P30, P30S .40 Barrel - Black - HKP-02412 HK P30 Barrel - .40 S&W - 3.85"
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    HK P30 Barrel - .40 S&W - 3.85"

    H&K Heckler & Koch

    $274.95
    HK P30, P30S .40 Barrel New HK German P30 standard factory length. 
    HKP-02412
    $274.95
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    $274.95
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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: $366.71
    Was: $695.95
    Barrel - HK USC 45 in Exc + shape HK German factory USC 45 barrel in excellent + condition. Rare and hard to find. 
    HKP-20471
    Now: $366.71
    Was: $695.95
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    Now: $366.71
    Was: $695.95
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  • New - PTR PDW (7.62x51/.308) 9 inch Barrel - HKP-02788 PTR PDW Barrel - 7.62 / .308 - 9" - SBR
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    PTR PDW Barrel - 7.62 / .308 - 9" - SBR

    PTR

    $189.99
    PTR PDW .308 Pistol or SBR Barrel- USA This part comes new in the white, never installed, and ready for the HK project. Features:
    HKP-02788
    $189.99
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    $189.99
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  • Out Of Stock
    On Sale
    HK45 Thread Protector - 16x1 LH - HKP - BLEMISHED
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    HK45 Thread Protector - 16x1 LH - HKP - BLEMISHED

    HKP HK Parts

    Now: $8.77
    Was: $14.95
    HKP .45 ACP Thread Protector - Threaded 16x1 LH - BLEMISHED ONLY 1 UNIT AVAILABLE - AS PICTURED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN.
    HKP-99802
    Now: $8.77
    Was: $14.95
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    Now: $8.77
    Was: $14.95
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    Out Of Stock
  • HK MP5, MP5K Thread Protector - .40 S&W - Threaded 9/16x24 HK MP5, MP5K Thread Protector - .40 S&W - Threaded 9/16x24
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    HK MP5, MP5K Thread Protector - .40 S&W - Threaded 9/16x24

    HKP HK Parts

    $19.95
    HKP .40 S&W Thread Protector for MP5 and MP5K - Threaded 9/16x24 HKP steel thread protector for .40 S&W and 10mm barrels threaded 9/16x24. Precision machined to help protect barrel threads from...
    HKP-22885
    $19.95
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    $19.95
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  • On Sale
    HK USP Tactical Barrel - .40 S&W - 4.9"- Threaded 14.5x1 LH - BLEMISHED HK USP Tactical Barrel - .40 S&W - 4.9"- Threaded 14.5x1 LH - BLEMISHED
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    HK USP Tactical Barrel - .40 S&W - 4.9"- Threaded 14.5x1 LH - BLEMISHED

    H&K Heckler & Koch

    Now: $219.09
    Was: $299.95
    H&K USP .40 S&W Tactical Barrel - Threaded 14.5x1 LH - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE...
    HKP-00328-B
    Now: $219.09
    Was: $299.95
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    Now: $219.09
    Was: $299.95
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  • On Sale
    HK P30, P30S Barrel - 9mm - 3.85" - BLEMISHED
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    HK P30, P30S Barrel - 9mm - 3.85" - BLEMISHED

    H&K Heckler & Koch

    Now: $172.46
    Was: $269.95
    HK P30, P30S Barrel - 9mm - 3.85" - BLEMISHED ONLY 3 UNITS AVAILABLE - VARYING CONDITION SHOWN - SOLD INDIVIDUALLY DOES
    HKP-01828-B
    Now: $172.46
    Was: $269.95
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    Now: $172.46
    Was: $269.95
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  • On Sale
    New - H&K Mark 23 .45 ACP Barrel - Threaded 16x1 RH - BLEMISHED - HKP-01038-B H&K Mark 23 .45 ACP Barrel - Threaded 16x1 RH - BLEMISHED H&K Heckler & Koch HKP-01038-B
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    HK Mark 23 Barrel - Threaded 16x1 RH - USED

    H&K Heckler & Koch

    Now: $337.46
    Was: $599.95
    H&K Mark 23 .45 ACP Barrel - Threaded 16x1 RH - USED A great replacement item for a now out-of-production pistol. New HK German mark 23 barrel threaded with the factory correct 16x1 RH thread. Get...
    HKP-01038-USED
    Now: $337.46
    Was: $599.95
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    Now: $337.46
    Was: $599.95
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  • On Sale
    HK45 Barrel - .45 ACP - 5.87" - Threaded 16x1 LH - BLEMISHED New - RCM HK 45 .45 ACP Tactical Barrel - Threaded 16x1 LH - BLEMISHED - HKP-08926-B
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    HK45 Barrel - .45 ACP - 5.87" - Threaded 16x1 LH - BLEMISHED

    RCM

    Now: $172.12
    Was: $270.00
    RCM HK 45 .45 ACP Tactical Barrel - Threaded 16x1 LH - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE...
    HKP-08926-B
    Now: $172.12
    Was: $270.00
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    Qty in Cart: 0
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    Now: $172.12
    Was: $270.00
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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: $188.46
    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...
    HKP-21155
    Now: $188.46
    Was: $279.95
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    Qty in Cart: 0
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    Now: $188.46
    Was: $279.95
    Subtotal:
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