MP5K / SP5K Series

MP5K / SP5K Series

Discover the most comprehensive selection of HK MP5K and SP5K parts at HKP. From bolt carrier groups and barrels to trigger packs and magazines, we provide all the HK parts you need to build, upgrade, or maintain your firearm. Whether you're enhancing your MP5K with 922r compliant parts or looking for the perfect SP5K flash hider, our top-quality components are designed for precision, reliability, and performance. Trust HKP for all your MP5K and SP5K parts and accessories.

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  • RCM HK SP5K Spec Suppressed Bolt Group RCM HKP-22277 RCM HK SP5K Spec Suppressed Bolt Group RCM HKP-22277
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    HK SP5K Bolt Group - Suppressed - Full Auto - Spec

    RCM

    $409.95
    RCM HK SP5K Spec Suppressed Bolt Group- Full Auto The RCM SP5K Suppressed bolt group is expertly engineered for operating in full auto while suppressed. Although designed as a full-auto bolt group, it also functions perfectly in semi-auto receivers. This...
    HKP-22323
    $409.95
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  • New - HKP 9mm Titanium Muzzle Brake - 3-Lug - HKP-18854 HK MP5, SP5K Muzzle Brake - 3 Lug - 9mm - Titanium
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    HK MP5, SP5K Muzzle Brake - 3 Lug - 9mm - Titanium

    HKP HK Parts

    $104.95
    HK Parts Titanium Muzzle Brake for 9mm, 3- Lug Barrels US for HK MP5 and HK MP5K Easily attaches to the end of any factory specification 9mm 3 lugged barrel. This muzzle brake doesn't require the of threads as it attached to the 3 lug tip. Also, a great...
    HKP-18854
    $104.95
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  • On Sale
    New - MFI Picatinny Rail Riser For Scope - HKP-00899 HK MP5 SP5K, SP89, G3, HK91, HK33, HK53, HK93 Rail Riser - Picatinny
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    HK MP5 SP5K, SP89, G3, HK91, HK33, HK53, HK93 Rail Riser - Picatinny

    MFI

    Now: $29.95
    Was: $44.95
    MFI Picatinny Rail Riser For Scope MFI Picatinny rail riser to elevate your optic by 18.8mm (.740"). This see-through riser allows a full view through the factory iron sights. This unit is similar to the A.R.M.S. #5 base scope mount and STANAG to...
    HKP-00899
    Now: $29.95
    Was: $44.95
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  • Out Of Stock
    HK MP5, MP5K Cocking Handle - Skeletonized HK MP5, MP5K Cocking Handle - Skeletonized

    HK MP5, MP5K Cocking Handle - Skeletonized

    HKP HK Parts

    $45.95
    HKP HK MP5, MP5K Extended Cocking Handle - Skeletonized Skeletonized extended cocking handle for MP5 & MP5K firearms. Designed to also function with UTG monolithic M-LOK handguards.  Made from solid steel billet and nitrided for a robust finish...
    HKP-22273
    $45.95
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  • Out Of Stock
    New - B&T HK MP5/MP5K QD/QO Brass Catcher - HKP-21315 HK MP5, MP5K Brass Catcher - QD,QO

    HK MP5, MP5K Brass Catcher - QD,QO

    B&T Brugger & Thomet

    $264.95
    B&T HK MP5/MP5K QD/QO Brass Catcher Works with HK MP5 only with the BT-21358 handguard or for the BT-21573 handguard for the MP5K. Compatible With: HK MP5/MP5K HK SP5/HK SP5K Clones
    HKP-21315
    $264.95
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    $264.95
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  • Out Of Stock
    HK MP5 Barrel Retaining Pin - 5.015mm H&K Heckler & Koch HKP-22284 HK MP5 Barrel Retaining Pin - 5.015mm H&K Heckler & Koch HKP-22284

    HK MP5 Barrel Retaining Pin - 5.015mm

    H&K Heckler & Koch

    $14.95
    H&K 90 Series Barrel Retaining Pin - 5.015mm Each barrel pin is used for installing a new or replacement barrel. HK suggests using a new factory barrel pin when installing or reinstalling an HK barrel.  Compatible With:  HK MP5, SP5, MP5K,...
    HKP-22284
    $14.95
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  • New - H&K HK MP5, MP5K MIM & Machined Rear Sight Base - HKP-19705 HK MP5, MP5K Rear Sight Base - MIM and Machined
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    HK MP5, MP5K Rear Sight Base - MIM and Machined

    H&K Heckler & Koch

    $14.95
    Heckler and Koch Rear Sight Base - Weldment for HK MP5 and HK MP5K New HK MP5, MP5K 17-4 Stainless H900 rear sight base. The most correct MP5, MP5K rear sight base available. The only factory correct sight base with the factory HK German side axis...
    HKP-19705
    $14.95
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  • New - MP5K Complete Weldment Set - HKP-16231 HK MP5K Weldment Set, Complete
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    HK MP5K Weldment Set, Complete

    $59.95
    MP5K Complete Weldment Set  Each set of weldments is all of the weldments required for an MP5K flat. Includes: Rear sight base Sight tab Case deflector Semi auto shelf Side reinforcement tabs 2 X rear stock bushings
    HKP-16231
    $59.95
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  • New - H&K Cocking Tube End Cap Detent - HKP-18050
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    HK MP5, HK91, G3, HK33 Cocking Tube Detent End Cap

    H&K Heckler & Koch

    $4.95
    HK German Cocking Tube End Cap/Dust Cap Detent HK German cocking tube detent for all steel and aluminum cocking tube end caps. Made of steel and finished in black.
    HKP-18050
    $4.95
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  • Refurbished - HKP SEF Short Axle Selector Lever for Metal Trigger Housings - Refinished - HKP-21921 HK SEF Short Axle Selector Lever for Metal Trigger Housings - Refinished
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    HK SEF Short Axle Selector Lever for Metal Trigger Housings - Refinished

    HKP HK Parts

    $34.95
    HKP SEF Short Axle Selector Lever for Metal Trigger Housings - Refinished HK steel SEF short axle selector lever. Fits all metal HK grip frames. Please note that the polymer (plastic) style SEF housing uses the long axle SEF selector lever and not this...
    HKP-21921
    $34.95
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  • New - HK MP5 Aimpoint ACRO A-2 with Optic Mount - HKP-21899-M HK MP5, SP5K Optic Mount with Aimpoint ACRO P-2
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    HK MP5, SP5K Optic Mount with Aimpoint ACRO P-2

    HKP HK Parts / Aimpoint

    $689.95
    HK MP5 Aimpoint ACRO P-2 with HKP Optic Mount The HKP optic mount securely positions the ACRO P-2 sight for fast, intuitive target acquisition, while preserving a clear view of the factory sights. Includes: HK MP5 Optic Mount (ACRO interface) Aimpoint...
    HKP-21899-M
    $689.95
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  • New - HKP HK MP5K, SP5K, SP89 Single Point Leather Sling - Dark Brown - HKP-20270 HK MP5K, SP5K, SP89 Leather Sling - Single Point - Dark Brown
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    HK MP5K, SP5K, SP89 Leather Sling - Single Point - Dark Brown

    HKP HK Parts

    $49.95
    Single Point Leather Sling - Dark Brown Our leather sling utilizes two HK style sling hooks to attach to a single mounting point. Designed to replicate the original, out of production, German HK offering. Each sling is handcrafted in the US by a German...
    HKP-20270
    $49.95
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