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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  • On Sale
    New - HK MP5K .40 S&W 3-Lug Barrel Thread Protector - Threaded 9/16x24 - HKP-02318 HK MP5K Barrel - .40 S&W - Threaded 9/16x24 with 3 Lug
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    HK MP5K Barrel - .40 S&W - Threaded 9/16x24 with 3 Lug

    HKP HK Parts

    Now: $199.95
    Was: $299.95
    HK MP5K .40 S&W 3-Lug Barrel with Thread Protector - Threaded 9/16x24 3-lugged Barrel with a 9/16x24 thread protector.  Specifications: 3-lugged barrel Includes 9/16x24 thread protector Compatible With: HK MP5K .40 S&W
    HKP-02318
    Now: $199.95
    Was: $299.95
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    Now: $199.95
    Was: $299.95
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  • Out Of Stock
    New - H&K MP5 40/10 Magazine Floor Plate - HKP-01269 HK MP5 Magazine Floorplate - 10mm / .40 S&W

    HK MP5 Magazine Floorplate - 10mm / .40 S&W

    H&K Heckler & Koch

    $14.95
    New HK German MP5/40 Magazine Floor Plate 
    HKP-01269
    $14.95
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    $14.95
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  • New - HKP MP5K 40/10 Full Auto Bolt Carrier - HKP-18362 HK MP5K Bolt Carrier - Full Auto - 10mm / .40 S&W - USA
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    HK MP5K Bolt Carrier - Full Auto - 10mm / .40 S&W - USA

    HKP HK Parts

    $149.95
    HKP MP5K 40/10 Full Auto Bolt Carrier Machined completely from billet ordnance steel. This carrier is made to the latest specs and is Tungsten filled, and heat treated providing the finest American made carrier available. Not to be confused with cheap...
    HKP-18362
    $149.95
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    $149.95
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  • Out Of Stock
    New - HKP MP5, 94 Trunnion 9mm - USA - HKP-17934 HK MP5, HK94 Trunnion - 9mm - USA

    HK MP5, HK94 Trunnion - 9mm - USA

    HKP HK Parts

    $54.95
    HKP MP5, 94 Trunnion 9mm - USA US made to exact factory HK specifications for the HK MP5, 94 type builds. Machined completely from ordnance grade steel and heat treated to factory specs. These are the best USA made trunnions on the market. Machined to HK...
    HKP-17934
    $54.95
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    $54.95
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  • New - H&K VTAC-MK2 Sling - Coyote Tan - HKP-22008 HK VTAC-MK2 Sling - Coyote Tan
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    HK VTAC-MK2 Sling - Coyote Tan

    H&K Heckler & Koch

    $62.95
    H&K VTAC-MK2 Sling - Coyote Tan - Two Point Sling The Viking Tactics Padded Sling features a closed cell foam shoulder strap and durable resin treated nylon. Its quick adjust design allows fast length changes from any position. The friction resistant...
    HKP-22008
    $62.95
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    $62.95
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  • On Sale
    New - HK MP5K Carrier Weldment Tube - HKP-99062 HK MP5K Carrier Weldment Tube
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    HK MP5K Carrier Weldment Tube

    USA

    Now: $19.95
    Was: $44.95
    HK MP5K Carrier Weldment Tube The MP5K carrier weldment tube houses and supports the carrier assembly in the HK MP5K firearm.  Each tube ships raw/unfinished and is ready to weld into your build. Compatible With: HK MP5K THIS CLOSEOUT PART IS NOT...
    HKP-99062
    Now: $19.95
    Was: $44.95
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  • Out Of Stock
    New - B&T HK MP5/SP5/G36 Helmet Stock Cheek Support - HKP-21684 HK MP5/SP5/G36 Helmet Stock Cheek Support

    HK MP5/SP5/G36 Helmet Stock Cheek Support

    B&T Brugger & Thomet

    $168.00
    B&T HK MP5/SP5/G36 Helmet Stock Cheek Support B&T cheek support for B&T helmet stocks. Compatible With: HK MP5/MP5K HK SP5/SP5K HK G36  
    HKP-21684
    $168.00
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    $168.00
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  • Out Of Stock
    New - HKP HK MP5K Receiver Flat - Smooth Top - HKP-21550 HK MP5K Receiver Flat - Smooth Top

    HK MP5K Receiver Flat - Smooth Top

    HKP HK Parts

    $129.95
    HKP HK MP5K Receiver Flat - Smooth Top The MP5K receiver flat has been meticulously crafted by the original German tool and die maker of the LSC receiver flat, utilizing factory original German prints and specifications. This receiver boasts a flat top,...
    HKP-21550
    $129.95
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  • New - Magpul HK MP5K AR 9mm Navy Style Match Trigger Group - HKP-21378 HK MP5K Trigger Group - AR - 9mm - Navy Style Match
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    HK MP5K Trigger Group - AR - 9mm - Navy Style Match

    Magpul

    $649.95
    Magpul HK MP5K AR 9mm Navy Style Match Trigger Group Our improved HK-AR Navy ambidextrous lower housing is now paired with our match trigger pack and a Magpul MOE grip to make this complete MP5K-AR style match trigger group. This trigger group is a...
    HKP-21378
    $649.95
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    $649.95
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  • Used - Refinished HK MP5K Slimline Forearm - OD Green - HKP-20498 HK MP5K, SP5K Slimline Handguard - OD Green - Refinished
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    HK MP5K, SP5K Slimline Handguard - OD Green - Refinished

    H&K Heckler & Koch

    $39.95
    Refinished HK MP5K Slimline Forearm - OD Green Refinished German military OD green slimline forearm with heat shield, modified to fit the MP5K. Available exclusively at HK Parts. Compatible With: MP5K, SP5K
    HKP-20498
    $39.95
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  • Out Of Stock
    New - Contoured Style - SEF - Match Trigger Group - HK SP5K - HKP-19496 HK MP5, MP5K, SP5K Match Trigger Group - SEF - Contoured Style

    HK MP5, MP5K, SP5K Match Trigger Group - SEF - Contoured Style

    H&K Heckler & Koch

    $0.00
    Contoured Style - SEF - Match Trigger Group - HK SP5K Upgrade your SP5K with this top-quality SEF Contoured Style RH Match Trigger Group. Ready to drop on your SP5K receiver, it serves as an excellent replacement trigger group, designed specifically for...
    HKP-19496
    $0.00
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  • Out Of Stock
    New - HK MP5K/SP5K/SP89 Vented Horizontal Forearm with Handstop - Black - HKP-19471 HK MP5K, SP5K, SP89 Vented Horizontal Handguard with Handstop

    HK MP5K, SP5K, SP89 Vented Horizontal Handguard with Handstop

    USA

    $44.95
    MP5K, SP5K, SP89 - Vented Horizontal Forearm with Handstop Each forearm will fit the MP5K or SP89 style of firearms. As an added bonus this item counts as a US made part toward 922r compliance. Each forearm has the latest enhancements and upgrades...
    HKP-19471
    $44.95
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