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 - HKP HK USP .45 ACP 16X1 LH Thread Protector - HKP-22177 HK USP Thread Protector - 16X1 LH
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    HK USP Thread Protector - 16X1 LH

    HKP HK Parts

    Now: $15.96
    Was: $19.95
    HKP HK USP .45 ACP 16X1 LH Thread Protector Thread protector for 16X1 left-hand .45 ACP barrels.   Compatible With: HK USP .45 & Compact HK45 & Compact HK UMP/USC Firearms with 16X1 left-hand threaded .45 ACP barrels NOT compatible...
    Now: $15.96
    Was: $19.95
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    Was: $19.95
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  • On Sale
    New - RCM HK 33/93 (5.56/.223) Barrel - Threaded 15x1 - HKP-01052
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    HK33, HK93 Barrel - 5.56 / .223 - 16.1" - Threaded 15x1

    RCM

    Now: $211.45
    Was: $234.95
    RCM HK 33/93 (5.56/.223) Barrel - Threaded 15x1 New Cold Hammer Forged Steel HK33/93 16.1" barrel, nitrided and US-manufactured. These barrels are among the finest available and come highly recommended by HKParts. Specifications: Made In The...
    Now: $211.45
    Was: $234.95
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    Was: $234.95
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  • Out Of Stock
    On Sale
    HK417, MR762 Upper Receiver Rod Tool HK417, MR762 Upper Receiver Rod Tool

    HK417, MR762 Upper Receiver Rod Tool

    MI Midwest Industries

    Now: $143.95
    Was: $159.95
    Midwest Industries Upper Receiver Rod Tool for HK417, MR762 Receiver support rod for HK417 and MR762 upper receivers. Designed to prevent receiver and index-pin damage during barrel nut removal, muzzle device installation, and other high-torque...
    Now: $143.95
    Was: $159.95
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    Was: $159.95
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  • On Sale
    New - RCM HK USP .40 to 9mm Conversion Barrel - Threaded - 13.5x1 - HKP-21789 HK USP Conversion Barrel - .40 S&W to 9mm - Threaded - 13.5x1
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    HK USP Conversion Barrel - .40 S&W to 9mm - Threaded - 13.5x1

    RCM

    Now: $193.45
    Was: $214.95
    RCM HK USP .40 to 9mm Conversion Barrel - Threaded - 13.5x1 This 9mm conversion barrel is a drop-in replacement that allows your USP to shoot the ubiquotous 9mm cartridge.Includes a thread protector. Each barrel is made from ordnance-grade steel,...
    Now: $193.45
    Was: $214.95
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    Now: $193.45
    Was: $214.95
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  • On Sale
    New - H&K HK VP9SK Standard Barrel - Black - HKP-18320 HK VP9SK Barrel - 9mm - 3.39"
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    HK VP9SK Barrel - 9mm - 3.39"

    H&K Heckler & Koch

    Now: $211.45
    Was: $234.95
    H&K HK VP9SK Standard Barrel - Black Brand new HK German Standard Length VP9SK Barrel. Marked HK 9mmx19 Brand new cold hammer forged & made in Germany. Compatible With: HK VP9SK models
    Now: $211.45
    Was: $234.95
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  • Out Of Stock
    New - H&K Barrel VP9 - Black - HKP-16820 HK VP9 Barrel - 9mm

    HK VP9 Barrel - 9mm

    H&K Heckler & Koch

    $0.00
    H&K Barrel VP9 Brand New HK German Standard Length VP9 Barrel. Marked HK 9mmx19. Brand new cold hammer forged & made in Germany. Compatible With: HK VP9 and VP9 Tactical HK VP9A1 K NOT compatible with VP9A1 F
    $0.00
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  • On Sale
    New - H&K MR556 A4/416 A5 2.0mm Gas Vent Screw - HKP-22051
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    HK416 A5, MR556 A4 Gas Vent Screw - 2.0mm

    H&K Heckler & Koch

    Now: $26.95
    Was: $29.95
    H&K MR556 A4/416 A5 2.0mm Gas Vent Screw German 2.0mm gas vent screw for MR556 A4. Provides more venting than the factory-installed 1.3mm screw. Compatible With: HK MR556 A4 HK416 A5
    Now: $26.95
    Was: $29.95
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  • Out Of Stock
    New - RCM HK MP5 10mm Barrel - Threaded 9/16x24 - HKP-21158 HK MP5 Barrel - 10mm - Threaded 9/16x24 with 3 Lug

    HK MP5 Barrel - 10mm - Threaded 9/16x24 with 3 Lug

    RCM

    $279.95
    RCM HK MP5 10mm Barrel - Threaded 9/16x24 Enhance the performance of your MP5 with the RCM HK MP5 10mm Barrel. This barrel is precision engineered for superior accuracy and durability. This barrel features a 9/16x24 thread and includes a thread protector...
    $279.95
    Out Of Stock
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    $279.95
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  • On Sale
    New - RCM HK MP5 10mm Barrel - Threaded 14x.75 - HKP-21156 HK MP5 Barrel - 10mm - Threaded 14x.75 with 3 Lug
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    HK MP5 Barrel - 10mm - Threaded 14x.75 with 3 Lug

    RCM

    Now: $251.95
    Was: $279.95
    RCM HK MP5 10mm Barrel - Threaded 14x.75 Enhance your MP5 with the RCM HK MP5 10mm Barrel, featuring precise 14x.75 threading. Expertly crafted for German MP5 models, this barrel ensures superior durability and performance. Ideal for both custom builds...
    Now: $251.95
    Was: $279.95
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    Now: $251.95
    Was: $279.95
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  • New - RCM HK VP9 Match 9mm Barrel - Threaded 13.5x1 LH - HKP-21068 HK VP9 Match Barrel - 9mm - 6.1" - Threaded 13.5x1 LH
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    HK VP9 Match Barrel - 9mm - 6.1" - Threaded 13.5x1 LH

    RCM

    $262.50
    RCM HK VP9 Match 9mm Barrel - Threaded 13.5x1 LH RCM threaded match barrel for the HK VP9 Match. Machined from fully heat-treated 4140 ordnance-grade steel and finished inside and out with a nitrided surface for durability and corrosion resistance. This...
    $262.50
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    $262.50
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  • On Sale
    New - HKP HK UMP .45 ACP Barrel - Threaded 16x1 LH - HKP-19395 HK UMP Barrel - .45 ACP - 16.5" - Threaded 16x1 LH
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    HK UMP Barrel - .45 ACP - 16.5" - Threaded 16x1 LH

    HKP HK Parts

    Now: $295.96
    Was: $369.95
    HKP HK UMP .45 ACP Barrel - Threaded 16x1 LH This new 16.5" threaded barrel is designed for the UMP or Omega firearms. A great replacement or threaded barrel upgrade. Compatible With: HK UMP .45 ACP Omega Firearms
    Now: $295.96
    Was: $369.95
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    Was: $369.95
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  • On Sale
    New - H&K HK MR762/417 Barrel Nut - HKP-16597 HK417, MR762 Barrel Nut
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    HK417, MR762 Barrel Nut

    H&K Heckler & Koch

    Now: $89.95
    Was: $99.95
    HK MR762 Barrel Nut Or Socket Barrel - German HK A must have for any removal or work done to barrel as the barrel nut may need to be replaced./417 Compatible With: HK MR762/417
    Now: $89.95
    Was: $99.95
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    Now: $89.95
    Was: $99.95
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