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 MP5SD 9mm Cocking Tube - For Lefties - HKP-18918 HK MP5SD Cocking Tube - 9mm - Left Hand
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    HK MP5SD Cocking Tube - 9mm - Left Hand

    HKP HK Parts

    $99.95
    MP5SD Cocking Tube - US Made - For Left-Handed Shooters HK German MP5SD spec cocking tube for use on MP5SD style builds or custom SD builds. Each unit is made from the original factory HK prints & tooling to the perfect HK MP5SD "F" style specs...
    HKP-18918
    $99.95
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  • Out Of Stock
    Used - H&K MP5 4 Position Burst Trigger Group 0,1,3,F - USED - HKP-02610

    HK MP5 4 Position Burst Trigger Group 0,1,3,F - USED

    H&K Heckler & Koch

    $2,599.95
    H&K MP5 4 Position Burst Trigger Group 0,1,3,F - USED HK German 4 Position 3 Round Burst Trigger Group – complete and ready for use. This is a high-quality, fully functional trigger group featuring a versatile 4 Position Burst (0, 1, 3, F)...
    HKP-02610
    $2,599.95
    Out Of Stock
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    $2,599.95
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  • New - H&K MP5 3 Position Navy T/G 0,1,Full With ESSL - HKP-00159 HK MP5 Navy Trigger Group - 3 Position (0,1,Full) - With ESSL
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    HK MP5 Navy Trigger Group - 3 Position (0,1,Full) - With ESSL

    H&K Heckler & Koch

    $2,549.95
    HK MP5 3 Position Navy T/G (0, 1, Full) With Extended Safety Selector Lever New factory German complete trigger group with the left side extended lever. No longer available and just a few units remaining. Compatible With:  HK MP5
    HKP-00159
    $2,549.95
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    $2,549.95
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  • HK MP5K, AP5-P Rear Sight Drum HK MP5K, AP5-P Rear Sight Drum
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    HK MP5K, AP5-P Rear Sight Drum

    MKE

    $28.95
    MKE MP5K & AP5-P Rear Sight Drum Factory MKE manufactured rear sight drum for the Century AP5-P.   Compatible With: HK MP5K Century AP5-P, AP5-M HK SP89 HK SP5K In-spec clones and custom builds
    HKP-22480
    $28.95
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    $28.95
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  • HK UMP Apparel - Hats, Patches, and Shirts HK UMP Apparel - Hats, Patches, and Shirts
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    HK UMP Apparel - Hats, Patches, and Shirts

    HKP HK Parts

    $0.00
    HKP HK UMP Apparel and Patch Collection  Represent your platform with the HK Parts UMP Series apparel and accessories lineup. Built for enthusiasts who appreciate iconic firearms and clean, understated design, this collection delivers premium...
    HKP-22459-M
    $0.00
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  • On Sale
    HK416, MR556 Handguard - A4 Style - 10" - USED HK416, MR556 Handguard - A4 Style - 10" - USED
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    HK416, MR556 Handguard - A4 Style - 10" - USED

    H&K Heckler & Koch

    Now: $379.95
    Was: $479.95
    H&K HK416, MR556 A4 10" Quick Disconnect Handguard Factory HK A4 handguard featuring HK's A4 quick disconnect latch.  Compatible with A1 and A4 rifles. THESE HANDGUARDS ARE SLIGHTLY USED AND WILL HAVE COSMETIC BLEMISHES.  PLEASE REFER TO...
    HKP-22426-USED
    Now: $379.95
    Was: $479.95
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  • On Sale
    HK91, G3, MSG90 Magazine - 5 Round - Black - BLEMISHED HKP HK Parts HKP-16250-BL-B HK91, G3, MSG90 Magazine - 5 Round - Black - BLEMISHED HKP HK Parts HKP-16250-BL-B
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    HK MP5, HK91, G3, PTR Magazine - 5 Round - Black - BLEMISHED

    HKP HK Parts

    Now: $44.97
    Was: $79.95
    HK91, G3, MSG90 Magazine - 5 Round - Black - BLEMISHED PITTING COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. 5 Round German Steel 308 Magazine With US Made...
    HKP-16250-BL-B
    Now: $44.97
    Was: $79.95
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    Now: $44.97
    Was: $79.95
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  • HK MP5K, SP5K ACR Folding Stock with Stock or Brace Adapter - Picatinny HK MP5K, SP5K ACR Folding Stock with Stock or Brace Adapter - Picatinny
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    HK MP5K, SP5K ACR Folding Stock with Stock or Brace Adapter - Picatinny

    F5 MFG

    $324.95
    HK MP5K, SP5K ACR Folding Stock w/Adapter - Picatinny The HKP picatinny end cap with the F5 ACR stock allows users to easily swap this, and other stocks, between their K and other platforms.  This drop-in ready assembly attaches with the K's two...
    HKP-22351-M
    $324.95
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    $324.95
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  • HK MP5 Trigger Group with AC-Unity Grip Conversion Kit HKP HK Parts HKP-22321 HK MP5 Trigger Group with AC-Unity Grip Conversion Kit HKP HK Parts HKP-22321
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    HK MP5 Metal Trigger Housing Conversion Kit - AC Unity Grip

    HKP HK Parts

    $189.95
    HK MP5 Metal Trigger Housing Conversion Kit - AC Unity Grip This kit includes everything you need to convert a polymer MP5 trigger group a robust metal housing. Simply use your existing semi-auto SEF trigger pack to complete the conversion. This...
    HKP-22321
    $189.95
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    $189.95
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  • Used - H&K 90 Series F/A Trigger Box - SEF- USED - HKP-22156 HK90 Series Trigger Box - Full Auto SEF- USED
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    HK90 Series Trigger Box - Full Auto SEF- USED

    H&K Heckler & Koch

    $89.95
    H&K 90 Series F/A Trigger Box - SEF- USED UNIT QUALITY MAY VARY - SEE PHOTOS FOR EXAMPLE OF CONDITION RANGE Used genuine H&K full-auto trigger box for 90 series firearms. Controls fire selector function and houses fire control component. Fits all...
    HKP-22156
    $89.95
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    $89.95
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  • Used - H&K 91/G3 (7.62x51/.308) A3 Retractable Stock - New Old Stock - HKP-22104 HK91, G3 A3 Retractable Buttstock - New Old Stock
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    HK91, G3 A3 Retractable Buttstock - New Old Stock

    H&K Heckler & Koch

    $1,345.95
    Heckler and Koch HK91, G3 A3 Retractable Stock - New Old Stock Genuine HK A3 retractable stock the HK91 or G3. These are original HK production units that have been out of manufacture for years, making remaining NOS increasingly rare. Compatible...
    HKP-22104
    $1,345.95
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    $1,345.95
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  • New - H&K MR556/416 E2 Charging Handle - HKP-22021 HK416, MR556 Charging Handle - E2
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    HK416, MR556 Charging Handle - E2

    H&K Heckler & Koch

    $153.95
    Heckler and Koch E2 Charging Handle for HK416, MR556 Factory HK charging handles for the MR556, HK416 platform. The standard MR556 charging handle allows the release latch to be configured on either the right or left side for user preference. The HK E2...
    HKP-22021
    $153.95
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    $153.95
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