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 HK P2000 9mm Barrel - Black - HKP-01570 HK P2000 Barrel - 9mm - 3.36"

    HK P2000 Barrel - 9mm - 3.36"

    H&K Heckler & Koch

    $234.95
    New HK German HK P2000 Barrel 9mm Brand new cold hammer forged 9mm P2000 barrel. Perfect for those who want to have a spare or for caliber conversion swaps.
    HKP-01570
    $234.95
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    $234.95
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  • New - RCM HK51K (7.62x51/.308) Barrel - Threaded 15x1 RH - HKP-02392 HK51K Barrel - 7.62 / .308 - 5.3" - Threaded 15x1 RH
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    HK51K Barrel - 7.62 / .308 - 5.3" - Threaded 15x1 RH

    RCM

    $164.95
    RCM HK51K (7.62x51/.308) Barrel - Threaded 15x1 RH Made to exact HK51K specifications from cold hammer forged steel, this barrel matches the quality of HK German barrels. Ideal for custom builds and HK51K style projects. Specifications: Made In The...
    HKP-02392
    $164.95
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    $164.95
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  • New - Nefarious Arms HK MR556 A3 & 416 A5 Barrel Nut - HKP-22082 HK416 A5, MR556 A3 Barrel Nut
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    HK416 A5, MR556 A3 Barrel Nut

    Nefarious Arms

    $39.95
    Nefarious Arms HK MR556 A3/416 A5 Barrel Nut Whether replacing a barrel nut or sourcing the best parts for your build, the Nefarious MR556/416 barrel nut is an excellent option.  Meticulously crafted in the US to the highest quality standards...
    HKP-22082
    $39.95
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    $39.95
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  • Out Of Stock
    On Sale
    New - HKP .45 ACP - Titanium Thread Protector - Threaded 16x1 LH - HKP-22036 Thread Protector - .45 ACP - 16x1 LH - Titanium

    Thread Protector - .45 ACP - 16x1 LH - Titanium

    HKP HK Parts

    Now: $11.95
    Was: $23.95
    HKP .45 ACP Titanium Thread Protector - Threaded 16x1 LH US-made thread protector for firearms chambered in .45 ACP, threaded 16x1 left hand. Compatible With: HK UMP, USC HK45, HK45T HK45C, HK45CT HK USP 45, USPT 45 HK USPC 45, USPCT 45 B&T...
    HKP-22036
    Now: $11.95
    Was: $23.95
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    New - HKP/H&K P2000 9mm Dimpled Barrel - Threaded 13.5x1 - HKP-18413 HK P2000 Barrel - 9mm - 4.28" - Threaded 13.5x1 - Dimpled

    HK P2000 Barrel - 9mm - 4.28" - Threaded 13.5x1 - Dimpled

    HKP HK Parts

    $229.95
    HKP/H&K P2000 9mm Dimpled Barrel - Threaded 13.5x1   Each barrel is expertly crafted from ordnance grade steel, heat treated, and finished with a premium nitride coating. The dimpled design adds aesthetic appeal, while the fitted O-ringed thread...
    HKP-18413
    $229.95
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    $229.95
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  • Out Of Stock
    New - H&K 21E/23E/21/11/13 Barrel Grip Holder - German - HKP-16427 HK21E, HK23E, HK21, HK11, HK13 Barrel Grip Holder - German

    HK21E, HK23E, HK21, HK11, HK13 Barrel Grip Holder - German

    H&K Heckler & Koch

    $34.95
    H&K 21E/23E/21/11/13 (7.62x51/.308) & (5.56/.223) Barrel Grip Holder - German New old stock with handling marks from being bagged and shipped in bulk. German HK manufacture.
    HKP-16427
    $34.95
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    $34.95
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  • Out Of Stock
    New - H&K HK MR556 A4 16.5" Barrel - HKP-21931 HK416 A5, MR556 A4 Barrel - 5.56 / .223 - 16.5"

    HK416 A5, MR556 A4 Barrel - 5.56 / .223 - 16.5"

    H&K Heckler & Koch

    $389.95
    H&K HK MR556 A4/A5 16.5" Barrel This 16.5" factory H&K MR556 A4 barrel is cold hammer-forged from high-quality steel for exceptional durability, accuracy, and longevity. Manufactured to Heckler & Koch’s exacting standards, it features a...
    HKP-21931
    $389.95
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  • Out Of Stock
    New - Nefarious Arms HK 416/MR556 14.5" A5 Barrel - HKP-21590 HK416, MR556 Barrel - 5.56 - 14.5" - Threaded 1/2"x28 - A5

    HK416, MR556 Barrel - 5.56 - 14.5" - Threaded 1/2"x28 - A5

    Nefarious Arms

    $594.95
    Nefarious Arms HK 416/MR556 14.5" A5 Barrel Each Nefarious Arms barrel is cold-hammer-forged and chrome-lined for years of accurate shooting.  Grab this expertly crafted barrel for your next SBR or pistol build.  Compatible With: HK 416 (A5,...
    HKP-21590
    $594.95
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    $594.95
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  • New - RCM HK23E Barrel - CHF - HKP-21837 HK23E, HK13 Barrel - 5.56 / .223 - 17.7"
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    HK23E, HK13 Barrel - 5.56 / .223 - 17.7"

    RCM

    $699.95
    RCM HK23E Barrel RCM HK23E light profile barrels are made from mil-spec 41V50 CHF blanks that are fully salt bath nitrided for optimal wear and corrosion resistance. These barrels are the finest out there to complete your HK23E or HK13 build. These are...
    HKP-21837
    $699.95
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    $699.95
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  • New - RCM HK P30L .40 to 9mm Conversion Barrel - Threaded - 13.5x1 - HKP-21788 HK P30L Conversion Barrel - .40 S&W to 9mm - Threaded - 13.5x1
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    HK P30L Conversion Barrel - .40 S&W to 9mm - Threaded - 13.5x1

    RCM

    $214.95
    RCM HK P30L .40 to 9mm Conversion Barrel - Threaded - 13.5x1 This 9mm conversion barrel is a drop-in replacement that allows your P30L to shoot the ubiqutous 9mm cartridge. Includes a thread protector. Each barrel is made from ordnance-grade steel,...
    HKP-21788
    $214.95
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    $214.95
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  • Out Of Stock
    New - RCM Schneider PSG-1 Barrel - HKP-21193 HK PSG-1 Barrel - 7.62 / .308 - 25.5"

    HK PSG-1 Barrel - 7.62 / .308 - 25.5"

    RCM

    $849.95
    RCM Schneider PSG-1 Barrel Only the finest blanks in the industry can produce the best results on the range. Schneider Barrel Company makes that blank. This barrel will work perfectly with standard G3/91 trunnions, G3 barrel extensions, or...
    HKP-21193
    $849.95
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    $849.95
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  • Used - HK MP5/K Barrel Extension Faux Suppressor - Threaded 15x1 RH - HKP-20890 HK MP5, MP5K Barrel Extension / Faux Suppressor - 8.85" - Threaded 15x1 RH
    Add to Cart

    HK MP5, MP5K Barrel Extension / Faux Suppressor - 8.85" - Threaded 15x1 RH

    USA

    $179.95
    HK MP5/K Barrel Extension Faux Suppressor - 15x1 RH Perfect for that rifle build or for those looking for the MP5KN suppressed look. Dakota tactical review of this exciting new product on an MP5: DTAC Suppressor Review Specifications: Overall length: 8...
    HKP-20890
    $179.95
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    $179.95
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