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 HK MP5 .40 S&W Barrel - Threaded 9/16x24 - 3-Lug - HKP-16402 HK MP5 Barrel - .40 S&W - Threaded 9/16x24 with 3 Lug
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    HK MP5 Barrel - .40 S&W - Threaded 9/16x24 with 3 Lug

    HKP HK Parts

    $249.95
    HKP HK MP5 .40 S&W Barrel - Threaded 9/16x24 - 3-Lug Newly manufactured US Made MP5 .40 S&W barrel that is 3-lugged and threaded with matching thread protector. This is a barrel offering that is made to the highest standards and tolerances and...
    HKP-16402
    $249.95
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    $249.95
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  • Out Of Stock
    New - H&K MP5 A3 Retractable Stock Sling Attachment Bar- Weldable - HKP-17427 HK MP5 A3 Retractable Buttstock Sling Attachment Bar - Weldable

    HK MP5 A3 Retractable Buttstock Sling Attachment Bar - Weldable

    H&K Heckler & Koch

    $9.95
    HK MP5 A3 Retractable Stock Sling Bar This part offering is a factory German HK part new unpainted and ready to weld to your application. Can also be used for upgrading a non-ambi stock to an ambi stock by attaching the sling bar to the A3 stock...
    HKP-17427
    $9.95
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    $9.95
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  • Used - H&K (7.62/.308) & (5.56/.223) Flash Hider - 15x1 - Used - HKP-00717 H&K (7.62/.308) & (5.56/.223) Flash Hider - 15x1 - Used H&K Heckler & Koch HKP-00717
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    HK33, HK53, HK93, HK91, HK G3 Flash Hider - Threaded 15x1 - Used

    H&K Heckler & Koch

    $15.95
    Heckler and Koch's Flash Hider - 15x1 RH - Used Used / surplus HK German flash hider threaded 15x1 RH.  Please inspect pictures to ascertain the average condition of these flash hiders. Compatible With: HK33 HK53 HK93 HK G3 HK91  
    HKP-00717
    $15.95
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    $15.95
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  • On Sale
    HK91, G3, PTR Magazine - 20 Round - Steel - USED HK91, G3, PTR Magazine - 20 Round - Steel - USED
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    HK91, G3, PTR Magazine - 20 Round - Steel - USED

    Rheinmetall

    Now: $24.95
    Was: $34.95
    Rheinmetall HK91, G3, PTR Magazine - 20 Round - Steel - USED VARYING CONDITION SHOWN - SOLD INDIVIDUALLY DENTS AND PITTING USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. G3 steel mags were made for the...
    HKP-22495-USED
    Now: $24.95
    Was: $34.95
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    Now: $24.95
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  • HK G3, HK33, HK93 Bayonet w/Scabbard - NOS H&K Heckler & Koch HKP-22366 HK G3, HK33, HK93 Bayonet w/Scabbard - NOS H&K Heckler & Koch HKP-22366
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    HK G3, HK33, HK93 Bayonet with Scabbard - NOS

    H&K Heckler & Koch

    $227.95
    HK G3, HK33, HK93 Bayonet with Scabbard - New Old Stock Genuine German HK military surplus bayonet in original wrap. These are the 12-groove version of the popular military bayonet.  Scabbard is included. Compatible With: HK G3 HK91 HK33 HK93
    HKP-22366
    $227.95
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    $227.95
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  • Out Of Stock
    RCM HK MP5 Recoil Rod Assembly HK MP5 Recoil Rod Assembly

    HK MP5 Recoil Rod Assembly

    RCM

    $54.95
    RCM HK MP5 Recoil Rod Assembly The recoil rod and spring assembly is a great item to have on hand for replacement and spares as this is a consumable part. Compatible With: HK MP5 NOT compatible with SP5 with the F-style recoil rod MP5 clones and custom...
    HKP-22202
    $54.95
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  • New - B&T HK MP5K Adapter for Folding Stock - HKP-22081 HK MP5K Adapter - Folding Stock
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    HK MP5K Adapter - Folding Stock

    B&T Brugger & Thomet

    $160.00
    B&T HK MP5K Adapter for Folding Stock Upgrade your MP5K platform with precision Swiss engineering. The B&T (Brügger & Thomet) HK MP5K Adapter for Folding Stock is designed to provide a secure and reliable mounting interface for...
    HKP-22081
    $160.00
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    $160.00
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  • On Sale
    New - HK MP5K .357 Sig Barrel - 3 Lug - Threaded 1/2x32 - Gunsmith Special - HKP-99177 HK MP5K Barrel - .357 Sig - Threaded 1/2x32 with 3 Lug - Gunsmith Special
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    HK MP5K Barrel - .357 Sig - Threaded 1/2x32 with 3 Lug - Gunsmith Special

    USA

    Now: $59.95
    Was: $289.95
    HK MP5K .357 Sig Barrel - 3 Lug - Threaded 1/2x32 - Gunsmith Special  Unfinished US-Made MP5K .357 Sig barrel. Please Note: Will require work before being functional. HKP recommends the work be performed by a professional gunsmith. Condition will...
    HKP-99177
    Now: $59.95
    Was: $289.95
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    Now: $59.95
    Was: $289.95
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  • New - H&K HK21 FMP Complete Build Kit - Matching Numbers - 14.5" Barrel - HKP-21848 HK21 FMP Complete Build Kit - Non Matching Numbers - 14.5" Barrel
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    HK21 FMP Complete Build Kit - Non Matching Numbers - 14.5" Barrel

    FMP HK CONTRACT

    $3,124.97
    HK21 Complete Build Kit- Non Matching Numbers - 14.5" Barrel HK Parts bring you yet another exhaustive parts kit.  Our HK21 kit includes everything you need to resurrect an iconic classic and hit the range for some belt-fed action. Paired with...
    HKP-21848
    $3,124.97
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    $3,124.97
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  • On Sale
    New - HK G36K/G36C 13 Slot Rail - Black - BLEMISHED - HKP-00272-B HK G36K, G36C Rail - 13 Slot - Black - BLEMISHED
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    HK G36K, G36C Rail - 13 Slot - Black - BLEMISHED

    UTG

    Now: $29.95
    Was: $64.95
    HK G36K/G36C 13 Slot Rail - Black - BLEMISHED CONDITION MAY VARY ONLY 13 SLOT RAIL INCLUDED. NO HARDWARE INCLUDED. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL...
    HKP-00272-B
    Now: $29.95
    Was: $64.95
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  • Out Of Stock
    New - H&K HK 417/MR762 Double Magazine Pouch - HKP-21800 HK417, MR762 Double Magazine Pouch

    HK417, MR762 Double Magazine Pouch

    H&K Heckler & Koch

    $129.95
    H&K HK 417 Double Magazine Pouch Factory HK double magazine pouch for the HK 417 and MR762 platforms chambered in .308/7.62x51. Compatible With: HK 417 MR762
    HKP-21800
    $129.95
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  • New - B&T 39mm QD Skeleton Mount for Aimpoint ACRO - HKP-21730-M Picatinny Optic Mount - 39mm - Skeleton Mount - Aimpoint ACRO
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    Picatinny Optic Mount - 39mm - Skeleton Mount - Aimpoint ACRO

    B&T Brugger & Thomet

    $150.00
    B&T 39mm QD Skeleton Mount for Aimpoint ACRO The B&T QD "Skeleton" mount for Aimpoint® Acro offers a 39mm elevated profile for improved sight alignment, ideal for night vision setups requiring clearance over forward-mounted IR devices. Its...
    HKP-21730-M
    $150.00
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    $150.00
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