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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  • Out Of Stock
    New - HK G36, SL8 Piston Rod Spring - HKP-01863

    HK G36, SL8 Piston Rod Spring

    H&K Heckler & Koch

    $9.99
    Heckler and Koch Piston Rod Spring for HK G36 and HK SL8 A must-have spare repair and replacement part. New HK German factory part. Compatible With: G36 SL8
    HKP-01863
    $9.99
    Out Of Stock
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    $9.99
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  • Out Of Stock
    New - HK G36C/G36K Gas Piston - HKP-17277 HK G36C/G36K Gas Piston - HKP-17277

    HK G36C, G36K Gas Piston - US Made

    USA

    $49.95
    HK G36C/G36K Gas Piston New Tom Bostic US Made G36C & G36K Gas Piston. Counts as one US made compliant part for your SL8 - G36C or G36K style conversion. This is one of the best parts to use on the conversion as it is one of the cheapest ways to get...
    HKP-17277
    $49.95
    Out Of Stock
    Qty in Cart: 0
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    $49.95
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  • New - RCM HK33K .300 BLK K Length Barrel - Threaded 5/8x24 - HKP-16952 HK33K Barrel - 300 BLK - 12.5" - Threaded 5/8x24
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    HK33K Barrel - 300 BLK - 12.5" - Threaded 5/8x24

    RCM

    $234.95
    RCM HK33K .300 BLK K Length Barrel - Threaded 5/8x24 Each barrel is designed for use with popular AAC-Style quick detach muzzle brakes and suppressors featuring a 5/8x24 thread pitch. It is also suitable for most .300 BLK suppressors and applications...
    HKP-16952
    $234.95
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    $234.95
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  • New - H&K HK P2000SK .40 S&W - Barrel - Black - HKP-01569 HK P2000SK Barrel - .40 S&W - 3.25"
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    HK P2000SK Barrel - .40 S&W - 3.25"

    H&K Heckler & Koch

    $259.95
    HK German Factory P2000SK .40 S&W Barrel Brand new HK P2000SK .40 Cal factory cold hammer forged polygonal rifled barrel. This barrel measures 3.25" and is drop-in ready.   Compatible With: HK P2000SK .40 S&W
    HKP-01569
    $259.95
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    $259.95
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  • Out Of Stock
    New - PTR HK 93/33 (5.56/.223) Barrel - Threaded 15x1 RH - HKP-16458 HK33, HK93 Barrel - 5.56 / .223 - 16.1" - Threaded 15x1 RH

    HK33, HK93 Barrel - 5.56 / .223 - 16.1" - Threaded 15x1 RH

    PTR

    $163.95
    PTR HK 93/33 (5.56/.223) Barrel - Threaded 15x1 RH New US made Barrel by PTR for the HK93, HK33 style of firearms. Specifications: Made In The USA 922r Compliant Counts as 1 US Made Part Overall length 16.1" 4140 Ordnance Grade Steel Threaded 15x1...
    HKP-16458
    $163.95
    Out Of Stock
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    $163.95
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  • New - HKP MP5 40/10 Fake Suppressor/Barrel Extension - 3-Lug - HKP-00889
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    HK MP5 Barrel Extension and Faux Suppressor - 3 Lug - .40 S&W, 10mm

    HKP HK Parts

    $69.95
    HKP MP5 40/10 Fake Suppressor/Barrel Extension - 3-Lug This fake suppressor is used as a barrel extension to bring your H&K MP5 40/10 8.85" barrel to legal conforming standards of 16" so you do not have to register the weapon as an SBR. This fits...
    HKP-00889
    $69.95
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    $69.95
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  • New - RCM MP5 & HK34 9mm Barrel - Threaded 1/2x28 - HKP-17762 HK MP5, HK94, HK34 Barrel - 9mm - 12.7"- Threaded 1/2x28
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    HK MP5, HK94, HK34 Barrel - 9mm - 12.7"- Threaded 1/2x28

    RCM

    $204.95
    RCM MP5, HK34, HK94 Barrel - 9mm - 12.7"- Threaded 1/2x28   Each barrel is hand-selected from the finest cold hammer forged (CHF) 41V45 steel blanks, expertly profiled and chambered in the desirable 16 flute chamber profile. Finished with a...
    HKP-17762
    $204.95
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    $204.95
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  • New - H&K USP40T/VP40 Thread Protector - HKP-21994 HK VP40, USP40T Thread Protector - 14.5x1mm LH
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    HK VP40, USP40T Thread Protector - 14.5x1mm LH

    H&K Heckler & Koch

    $30.95
    H&K USP40T/VP40T Thread Protector The HK thread protector is a must have accessory when a sound suppressor or muzzle attachment is not mounted on your tactical pistol. The thread protector will prevent damages to the threads and crown. Compatible...
    HKP-21994
    $30.95
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    $30.95
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  • On Sale
    Used - CQT FX Simunition Conversion Kit for MP5 - 9mm Blue - USED - HKP-99054 CQT FX Simunition Conversion Kit for MP5 - 9mm Blue - USED
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    CQT FX Simunition Conversion Kit for MP5 - 9mm Blue - USED

    Simunition

    Now: $269.95
    Was: $319.95
    CQT FX Simunition Conversion Kit for MP5 - 9mm - Blue - USED   SHADES OF BLUE MAY VARY   The CQT FX Simunition conversion kit is in good  condition and comes with original factory packaging. This is your chance to grab one of the last...
    HKP-99054
    Now: $269.95
    Was: $319.95
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    Now: $269.95
    Was: $319.95
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  • New - H&K HK VP40 Barrel - Black - HKP-18722 HK VP40 Barrel - .40 S&W - 4.09"
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    HK VP40 Barrel - .40 S&W - 4.09"

    H&K Heckler & Koch

    $229.95
    Brand New HK German Standard Length VP40 Barrel. Cold Hammer Forged & Make in Germany. Compatible With: HK VP40 VP40 Tactical Models
    HKP-18722
    $229.95
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    $229.95
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  • Out Of Stock
    New - H&K HK SL8 Gas Block - HKP-16359 HK SL8 Gas Block

    HK SL8 Gas Block

    H&K Heckler & Koch

    $139.95
    H&K HK SL8 Gas Block
    HKP-16359
    $139.95
    Out Of Stock
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    $139.95
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  • Out Of Stock
    New - PTR HK G3/91 (7.62x51/.308) Match Grade Barrel - Threaded 15x1 - HKP-00873 HK91, G3 Barrel - 7.62 / .308 - 18" - Threaded 15x1 - Match

    HK91, G3 Barrel - 7.62 / .308 - 18" - Threaded 15x1 - Match

    PTR

    $199.95
    PTR HK G3/91 (7.62x51/.308) Match Grade Barrel - Threaded 15x1 Each barrel is current PTR production and has the proper number and depth of flutes for optimum functionality. This barrel is a medium contour barrel that is larger in diameter than a...
    HKP-00873
    $199.95
    Out Of Stock
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    $199.95
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