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 - 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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  • Used - H&K MP5 9mm Parts Kit 100% German - A2 Stock & SEF Lower - HKP-00771 HK MP5 Parts Kit - A2 Buttstock and SEF Lower - 9mm - 100% German
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    HK MP5 Parts Kit - A2 Buttstock and SEF Lower - 9mm - 100% German

    H&K Heckler & Koch

    $2,239.95
    HK German MP5 9mm Used Parts Kit Complete (Minus Receiver) All MP5 Kits Include: HK 3-Lug MP5 Barrel - cold hammer forged Cocking Tube Front Sight Tower Wide Forearm - Black Bolt Group - MP5 Full Auto 2 small and 1 large Push Pin 30-Round Curved...
    HKP-00771
    $2,239.95
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  • New - Ergo M-LOK Harris Bipod Mount - HKP-17851
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    Ergo M-LOK Harris Bipod Mount

    Ergo

    $33.95
    M-LOK Harris Style Bipod Mount Features: Contoured to fit Harris-style bipods Black anodized 6061-T6 alum.   
    HKP-17851
    $33.95
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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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  • On Sale
    HK MP5, MP5K Optic Mount - Aimpoint ACRO P-1 HK MP5, MP5K Optic Mount - Aimpoint ACRO P-1
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    HK MP5, MP5K Optic Mount - Aimpoint ACRO P-1

    HKP HK Parts

    Now: $67.95
    Was: $98.95
    HKP HK Parts Aimpoint ACRO P1 Mount for your HK MP5 and HK MP5K  Low-profile mount with a direct Aimpoint ACRO mounting interface. The smallest mount in the market with a sleek and clean overall look. Full co-witness, this mount is the best in...
    HKP-99354
    Now: $67.95
    Was: $98.95
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    Now: $67.95
    Was: $98.95
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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
    HK21 FMP Complete Build Kit- Matching Numbers - MM Barrel HKP HK Parts HKP-21626-1 HK21 FMP Complete Build Kit- Matching Numbers - MM Barrel HKP HK Parts HKP-21626-1
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    HK21 FMP Complete Build Kit - Non Matching Numbers - MM Barrel

    FMP HK CONTRACT

    Now: $3,849.95
    Was: $4,294.97
    HK21 Complete Build Kit- Non Matching Numbers HK Parts brings you another exhaustive parts kit. Our HK21 parts kit includes everything you need to resurrect an iconic classic and hit the range for belt-fed action. We also included our own hanger with a...
    HKP-22378
    Now: $3,849.95
    Was: $4,294.97
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    Now: $3,849.95
    Was: $4,294.97
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  • New - HK MP5K Magpul UCS Stock with Adapter - HKP-22198 HK MP5K Ultra Carbine Stock and Adapter
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    HK MP5K Ultra Carbine Stock and Adapter

    HKP HK Parts / Magpul

    $312.95
    HK MP5K Magpul UCS Stock with Adapter The HK Parts UCS adapter and stock for the MP5K pairs our proven stock adapter with Magpul's UCS stock for a compact, adjustable configuration. The UCS stock features a reversible hinge for left and right folding...
    HKP-22198
    $312.95
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