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 - Ergo AR-15 Castle Nut For Buffer Tubes - HKP-02729 Ergo AR-15 Castle Nut For Buffer Tubes Ergo HKP-02729
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    HK416, MR556, AR-15 Buffer Tube Castle Nut

    USA

    $9.99
     AR-15 Castle Nut for Buffer Tubes - US Made Steel Castle-nut for AR buffer tubes fits both mil-spec and commercial buffer tubes alike.  Compatible With: HK416, MR556 AR-15 style platforms
    HKP-02729
    $9.99
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  • New - Magpul M-LOK 7 Slot Rail Section - HKP-19569 M-LOK Rail Section - 7 Slot
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    M-LOK Rail Section - 7 Slot

    Magpul

    $21.95
    Magpul M-LOK 7 Slot Rail Section Designed for use with all M-LOK compatible Hand Guards and Forends, M-LOK Aluminum Rail Sections allow the attachment of various 1913 Picatinny spec rail-mounted accessories such as lights, vertical grips, etc. Machined...
    HKP-19569
    $21.95
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    $21.95
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  • New - H&K 91/G3 (7.62x51/.308) Rubberized Cocking Handle - HKP-00509 HK91, G3 Cocking Handle - Rubberized
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    HK91, G3 Cocking Handle - Rubberized

    H&K Heckler & Koch

    $32.95
    HK German G3 & HK 91 Rubberized Cocking Handle - Newest Style A genuine Heckler & Koch part. This is the latest style cocking handle that replaces the standard plastic style cocking handle that chips, cracks, and eventually falls off. This new...
    HKP-00509
    $32.95
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  • New - H&K Burst Trigger Pack Compression Rod Spring - HKP-16199
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    HK90 Series Compression Spring for Shifter Rod on Burst Trigger Packs

    H&K Heckler & Koch

    $10.95
    H&K Burst Trigger Pack Compression Rod Spring Burst pack compression spring for compression rod found in all HK Burst Trigger Packs. This part, along with the compression rod, is the number one most common wear or breakage parts in HK Burst Packs...
    HKP-16199
    $10.95
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  • New - Safariland Break Free CLP - HKP-15435 Safariland Break Free CLP Safariland HKP-15435
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    Firearm Cleaning Oil - Break Free CLP - .5 oz

    Safariland

    $4.95
    Break Free Cleaner, Lubricant and Preservative 1/2 OZ. Features: Penetrates and spreads along metal surfaces into every, crack, pit and crevice to undercut contamination and lift. carbon, fouling and residue away. Long-lasting lubricating film...
    HKP-15435
    $4.95
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    $4.95
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  • Out Of Stock
    New - Strike Universal Picatinny - Dual Folding Adapter - Stabilizer - HKP-21288 Picatinny - Dual Folding Adapter - Stabilizer

    Picatinny - Dual Folding Adapter - Stabilizer

    Strike Industries

    $197.99
    Strike Dual Folding Adapter - Stabilizer This new stabilizer is the perfect option for the MP5 or MP5K platform that utilizes a 1913 picatinny back plate. For a quick and easy ambidextrous folding action.  The Strike Dual Folding Adapter is a...
    HKP-21288
    $197.99
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  • New - RCM HK MP5K/N 9mm Barrel - Threaded 1/2x28 - 3-Lug - HKP-19330 HK MP5K, MP5KN Barrel - 9mm - 5.85" - Threaded 1/2x28 with 3 Lug
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    HK MP5K, MP5KN Barrel - 9mm - 5.85" - Threaded 1/2x28 with 3 Lug

    RCM

    $164.95
    RCM HK MP5K/N 9mm Barrel - Threaded 1/2x28 - 3-Lug Machined from a cold hammer forged blank to the latest MP5KN PDW specifications, this barrel features factory-correct, updated 16 flutes in the chamber. It is 3-lugged, threaded, and designed to...
    HKP-19330
    $164.95
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    $164.95
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  • HK MP5, HK90 Series Trigger Box - Semi Auto - Billeted HK MP5, HK90 Series Trigger Box - Semi Auto - Billeted
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    HK MP5, HK90 Series Trigger Box - Semi Auto - Billeted

    HKP HK Parts

    $69.95
    HKP HK Parts USA America Made Trigger Pack for HK90 Series, Century, PTR, and Zenith  This part is a perfect 922r compliant part as it counts as one of the needed US-made parts. Each unit comes with new style updates for ease of putting parts into...
    HKP-02384
    $69.95
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  • New - H&K Friction Sear For SEF, Navy Trigger Packs - HKP-16198 HK MP5, HK33, HK53, HK93 Catch with Roller for SEF and Navy Trigger Packs
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    HK MP5, HK33, HK53, HK93 Catch with Roller for SEF and Navy Trigger Packs

    H&K Heckler & Koch

    $8.95
    H&K Friction Sear For SEF, Navy Trigger Packs New HK German Friction Sear for SEF & Navy trigger packs. This item is also referred to as the catch with roller but more commonly called a sear.
    HKP-16198
    $8.95
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  • On Sale
    Used - H&K 91/G3 (7.62x51/.308) 20 Round Magazine - Steel - Refinished - BLEMISHED - HKP-21587-B HK91, G3 20 Round Magazine - Steel - Refinished - BLEMISHED
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    HK91, G3 20 Round Magazine - Steel - Refinished - BLEMISHED

    H&K Heckler & Koch

    Now: $47.95
    Was: $84.95
    H&K 91/G3 (7.62x51/.308) 20 Round Magazine - Steel - Refinished - BLEMISHED   COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK G3 factory steel...
    HKP-21587-B
    Now: $47.95
    Was: $84.95
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    Now: $47.95
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  • New - Heckler and Koch 15 Round MP5, SP5, MP5K, SP5K 9mm Curved Magazine - Cerakote - HKP-21383-M HK MP5, SP5, MP5K, SP5K Magazine - 15 Round - 9mm - Cerakote
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    HK MP5, SP5, MP5K, SP5K Magazine - 15 Round - 9mm - Cerakote

    H&K Heckler & Koch

    $99.95
    Heckler and Koch German 15 Round Cerakote Magazine for HK MP5, MP5K, SP5, SP5K Brand new factory fresh German HK 15 round curved magazine. Perfect for those in need of a lower capacity magazine for a more comfortable prone position...
    HKP-21383-M
    $99.95
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    $99.95
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  • New - RCM HK G3, HK 91, PTR Trunnion - HKP-01289 HK91, G3, PTR Trunnion
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    HK91, G3, PTR Trunnion

    RCM

    $64.95
    RCM Trunnion For The HK91/G3 Series - US Made This part is machined from ordnance grade 9310 enhanced steel and heat treated to exact HK specifications. This item is the best USA-made trunnion on the market. Machined to spec and are to the custom ground...
    HKP-01289
    $64.95
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    $64.95
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