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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  • HK MP5, MP5K Flash Hider for Tri-Lug Barrels - 1/2x28 - Taper Mount HK MP5, MP5K Flash Hider for Tri-Lug Barrels - 1/2x28 - Taper Mount
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    HK MP5, MP5K Flash Hider for Tri-Lug Barrels - 1/2x28 - Taper Mount

    JMAC Customs

    $116.95
    1/2x28 - Plan B Taper Mount Flash Hider for MP5 & MP5K This flash hider is specifically designed for use on MP5, MP5K, and clone firearms featuring the MP5-spec. tri-lug.  The internal profile clears the front of the tri-lugs when installed...
    HKP-22407
    $116.95
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  • On Sale
    HK MP5K 40/10 Brace/Stock Adapter - BLEMISHED HKP HK Parts HKP-21869-B HK MP5K 40/10 Brace/Stock Adapter - BLEMISHED HKP HK Parts HKP-21869-B
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    HK MP5K 40/10 Stock or Brace Adapter - BLEMISHED

    HKP HK Parts

    Now: $84.09
    Was: $113.95
    HK MP5K 40/10 Brace/Stock Adapter - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Easily attach your favorite A2 style stock to your MP5K 40/10 with...
    HKP-21869-B
    Now: $84.09
    Was: $113.95
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    Was: $113.95
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  • Picatinny Optic Mount Shield - Aimpoint T1, H1 - S.W.O.R.D.S Picatinny Optic Mount Shield - Aimpoint T1, H1 - S.W.O.R.D.S
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    Picatinny Optic Mount Shield - Aimpoint T1, H1 - S.W.O.R.D.S

    Frost Defense

    $239.95
    Aimpoint T-1, H-1 Optic Mount - S.W.O.R.D.S - Picatinny Mount The S.W.O.R.D.S Enhanced optic shield designed for Aimpoint T1, H1 red dot sights. This patent-pending mount system provides robust glare and impact protection by surrounding the ocular and...
    HKP-22340-M
    $239.95
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  • On Sale
    New - MKE AP5 Incomplete Flash Hider - HKP-22223 MKE AP5 Incomplete Flash Hider MKE HKP-22223
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    Century Arms AP5 Flash Hider - Incomplete

    MKE

    Now: $37.46
    Was: $79.95
    MKE AP5 Incomplete Flash Hider The MKE AP5 and MKE AP5-P OEM flash hider is an essential spare for anyone needing to replace a broken or damaged flash hider body. With a straightforward process, you can easily remove the locking latch, spring, and pins...
    HKP-22223
    Now: $37.46
    Was: $79.95
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    Now: $37.46
    Was: $79.95
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  • New - HKP HK MP5K 40/10 Brace/Stock Adapter - HKP-21869 HK MP5K 40/10 Stock or Brace Adapter
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    HK MP5K 40/10 Stock or Brace Adapter

    HKP HK Parts

    $113.95
    HKP HK MP5K 40/10 Brace/Stock Adapter Easily attach your favorite A2 style stock to your MP5K 40/10 with this durable, precision-engineered adapter. Made in the US and available exclusively at HK Parts.  Compatible with composite and wood A2 stocks...
    HKP-21869
    $113.95
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  • New - B&T QD Mount "Skeleton" for Aimpoint T Series 52mm - HKP-21772 Picatinny Optic Mount - 52mm - Skeleton - Aimpoint T Series
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    Picatinny Optic Mount - 52mm - Skeleton - Aimpoint T Series

    B&T Brugger & Thomet

    $165.00
    B&T QD Mount "Skeleton" for Aimpoint T Series 52mm B&T universal Picatinny mount 52mm QD riser mount for the Aimpont T Series of optics.  Quickly attach and detach your Aimpoint T Series optic with B&T's precision machined 52mm mount...
    HKP-21772
    $165.00
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    $165.00
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  • New - RCM HK MP5 & MP5K 40/10 SD 115 Degree Locking Piece - HKP-21525 HK MP5, MP5K 40/10 SD 115 Degree Locking Piece
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    HK MP5, MP5K 40/10 SD 115 Degree Locking Piece

    RCM

    $44.95
    RCM HK MP5 & MP5K 40/10 SD 115 Degree Locking Piece Compatible With:  MP5/K 10  MP5/K 40 
    HKP-21525
    $44.95
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  • New - RCM HK MP5K 10mm Barrel - Threaded 14x.75 - HKP-21155 HK MP5K Barrel - 10mm - Threaded 14x.75 with 3 Lug
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    HK MP5K Barrel - 10mm - Threaded 14x.75 with 3 Lug

    RCM

    $279.95
    RCM HK MP5K 10mm Barrel - Threaded 14x.75 Upgrade your MP5K with the RCM HK MP5K 10mm Barrel, featuring a precise 14x1.75 threading for optimal accessory compatibility. Expertly crafted to enhance performance and reliability, this barrel is perfect for...
    HKP-21155
    $279.95
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  • New - H&K MP5K PDW 10mm Barrel - Threaded 9/16x24 - 3-Lug - HKP-02317 HK MP5K PDW Barrel - 10mm - Threaded 9/16x24 with 3 Lug
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    HK MP5K PDW Barrel - 10mm - Threaded 9/16x24 with 3 Lug

    USA

    $299.95
    USA MP5K-PDW 10mm Barrel - Threaded 9/16x24 - 3-Lug This US-made MP5KN-PDW 10mm barrel is a rare barrel. Ideal for enhancing your MP5K-PDW, this barrel combines precision threading with the versatility of a 3-lug mount. Specifications: Made In The...
    HKP-02317
    $299.95
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  • Out Of Stock
    New - H&K MP5K 9mm 3 Position S,E,3F Burst Trigger Group - Push Pin - HKP-02019 HK MP5K 9mm 3 Position S,E,3F Burst Trigger Group - Push Pin

    HK MP5K 9mm 3 Position S,E,3F Burst Trigger Group - Push Pin

    H&K Heckler & Koch

    $0.00
    Trigger Group (S,E,3F) - HK MP5K 9mm New factory HK German and rare only a few of these in the country and there will be no more Compatible With: HK MP5K 9mm
    HKP-02019
    $0.00
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  • Out Of Stock
    New - H&K MP5 & MP5K 9mm Ambidextrous 0,1 Trigger Pack - HKP-18209 HK MP5, MP5K  Ambidextrous 0,1 Trigger Pack - 9mm

    HK MP5, MP5K Ambidextrous 0,1 Trigger Pack - 9mm

    H&K Heckler & Koch

    $0.00
    H&K MP5/K 9mm 2 Position 0,1 Ambidextrous Trigger Pack Introducing the popular FBI or 0,1 style ambidextrous trigger pack, now available in a fully German-manufactured configuration. This trigger pack is designed for use with ambidextrous grip...
    HKP-18209
    $0.00
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    $0.00
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  • On Sale
    HK MP5K, SP5K, SP89 Stock - Folding - 9mm - INCOMPLETE - USED HK MP5K, SP5K, SP89 Stock - Folding - 9mm - INCOMPLETE - USED
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    HK MP5K, SP5K, SP89 Stock - Folding - 9mm - INCOMPLETE - USED

    Choate

    Now: $139.95
    Was: $199.95
    HK MP5K, SP5K, SP89 Stock - Folding - 9mm - INCOMPLETE - USED INCOMPLETE USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. Each stock features the same quick, open steel housing and folding arm found on all...
    HKP-00390-USED
    Now: $139.95
    Was: $199.95
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    Now: $139.95
    Was: $199.95
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