HK Rifle / SMG Parts

HK Rifle / SMG Parts

Elevate Your HK Rifle with Premium Parts – MP5, HK416, SP5, and More!

Enhance your HK rifle with top-notch parts and accessories. From HK MP5 and HK MP5K to HK SP5 and HK UMP or HK USC, we offer a vast selection. Discover high-quality magazines, binary triggers, stocks, grips, barrels, handguards, sights, and more for your firearm. Whether you own an HK416, HK SP5K, HK G36, or HK MP5 22, we have the Heckler and Koch rifle parts you've been looking for. Shop now to upgrade your rifle to perfection.

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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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  • New - MM HK MSG90 (7.62x51/.308) Factory Correct T Rail Set - HKP-00567 HK MSG90 T-Rail Set - Factory Correct
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    HK MSG90 T-Rail Set - Factory Correct

    Michaels Machines

    $389.95
    MSG-90 Style Receiver Reinforcement Left & Right Side Rail Set Each set is new in white and an exact reproduction of the factory German HK MSG-90 side receiver rails. These rails have the factory-correct holes for welding and the ejection port...
    HKP-00567
    $389.95
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  • HK91, G3, HK33, HK53, HK93 Stock and Stock Adapter - AR Style
HK91, G3, HK33, HK53, HK93 Stock and Stock Adapter - AR Style
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    HK91, G3, HK33, HK53, HK93 Stock and Stock Adapter - AR Style

    PTR

    $209.95
    PTR AR Brace/Stock Adapter w/ Magpul Stock - G3, 91, 93, 53, 33 AR15/M16 to HK 90 series stock adapter set with a Magpul MOE stock installed as well as the buffer tube and castle nut. Just use your existing back-plate and MIL-SPEC buffer assembly and you...
    HKP-15457
    $209.95
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  • New - H&K MP5 40/10 Bolt Hold Open Axle Roll Pin - HKP-01634
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    HK MP5 Bolt Hold Open Axle Roll Pin - .40 S&W, 10mm

    H&K Heckler & Koch

    $8.95
    H&K MP5 40/10 Bolt Hold Open Axle Roll Pin  
    HKP-01634
    $8.95
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  • New - HKP MP5K/SP89/SP5K 9mm Cocking Tube - For Lefties - HKP-17105
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    HK MP5K, SP89, SP5K Cocking Tube - 9mm - Left Hand

    HKP HK Parts

    $99.95
    US Made MP5K, SP89, MP5K-N, MP5K-PDW Cocking Tube- For Left Handed Shooters Made to exact HK German specifications only made for left handed shooters. The "J" channel is on the right hand side for a left handed shooter. Totally custom cocking tube,...
    HKP-17105
    $99.95
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    $99.95
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  • Out Of Stock
    New - Strike Industries M-LOK & Key Mod Universal Rail - 7 Slots - HKP-17594 MLOK LINK Rail Section - 7 Slots - QD

    MLOK LINK Rail Section - 7 Slots - QD

    Strike Industries

    $25.95
    Strike Industries M-LOK & Key Mod Universal Rail - 7 Slots Strike Industries LINK attachment system takes the age old question Key-Mod vs. M-LOK and came up with the ultimate solution, a dual interface design compatible with both M-LOK and Key-Mod,...
    HKP-17594
    $25.95
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  • New - H&K 90 Series Hammer Spring Bushing For Burst Trigger Packs - HKP-02398 HK MP5, HK90 Series Hammer Spring Bushing - Burst
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    HK MP5, HK90 Series Hammer Spring Bushing - Burst

    H&K Heckler & Koch

    $19.99
    90 Series Hammer Spring Bushing For Burst Trigger Packs This part will fit both two and three-round burst trigger packs. 
    HKP-02398
    $19.99
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  • New - B&T MP5SD QD Brass Catcher - HKP-18099 HK MP5SD Brass Catcher - Quick Detach
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    HK MP5SD Brass Catcher - Quick Detach

    B&T Brugger & Thomet

    $210.00
    B&T MP5SD Brass Catcher For Use With B&T Handguard     The B&T brass catcher for the MP5SD locks into perfect position when mounted to the matched B&T's HK MP5SD Tri-Rail Handguard. Features a quick disconnect mechanism for easy...
    HKP-18099
    $210.00
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    $210.00
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  • Out Of Stock
    New - HKP ACE Adapter for MP5K, SP89 & SP5K - HKP-18505 HK MP5K, SP89, SP5K Stock or Brace Adapter - ACE Style

    HK MP5K, SP89, SP5K Stock or Brace Adapter - ACE Style

    HKP HK Parts

    $54.95
    ACE Adapter for MP5K, SP89 & SP5K   Each ACE adapter is made from a solid billet of CNC machined aircraft grade aluminum. Properly buffered with factory correct "H" buffers to protect your expensive firearm. This is the finest ACE adapter...
    HKP-18505
    $54.95
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  • New - Ergo 1 1/2" Harris Bipod Slide Mount With Sling Stud - HKP-15737 Ergo 1 1/2" Harris Bipod Slide Mount With Sling Stud Ergo HKP-15737
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    Ergo 1 1/2" Harris Bipod Slide Mount With Sling Stud

    Ergo

    $19.95
    Ergo 1 1/2" Harris Bipod Slide Mount With Sling Stud The ERGO 1.5" Bipod Slide Mount slides onto 1913 Picatinny rail, allowing shooters to mount a variety of rail accessories, including swivels or bipods. Features: Slides onto Picatinny rails and held...
    HKP-15737
    $19.95
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  • HK MP5K, AP5-P Rear Sight Drum HK MP5K, AP5-P Rear Sight Drum
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    HK MP5K, AP5-P Rear Sight Drum

    MKE

    $28.95
    MKE MP5K & AP5-P Rear Sight Drum Factory MKE manufactured rear sight drum for the Century AP5-P.   Compatible With: HK MP5K Century AP5-P, AP5-M HK SP89 HK SP5K In-spec clones and custom builds
    HKP-22480
    $28.95
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  • On Sale
    HK 30 Round HK MP5, MP5K LEO Marked 9mm Magazine - USED H&K Heckler & Koch HKP-20517-USED HK 30 Round HK MP5, MP5K LEO Marked 9mm Magazine - USED H&K Heckler & Koch HKP-20517-USED
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    HK MP5, MP5K Magazine - LEO Marked - 9mm - 30 Round - USED

    H&K Heckler & Koch

    Now: $134.95
    Was: $199.95
    HK 30 Round HK MP5, MP5K LEO Marked 9mm Magazine - USED SOLD INDIVIDUALLY USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. This is a used H&K German MP5 9mm 30-round magazine. All MP5 magazines...
    HKP-20517-USED
    Now: $134.95
    Was: $199.95
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    Now: $134.95
    Was: $199.95
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