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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  • Used - H&K SP5K Spec Only 9mm SEF Navy Style Housing - Clipped & Pinned - USED - HKP-20064 HK SP5K Spec Only 9mm SEF Navy Style Housing - Clipped & Pinned - USED
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    HK SP5K Spec Only 9mm SEF Navy Style Housing - Clipped & Pinned - USED

    H&K Heckler & Koch

    $149.95
    H&K SP5K Spec Only 9mm SEF Navy Style Housing - Clipped & Pinned - USED Hand-selected for the highest quality, these "like new" H&K SP5K SEF style trigger housings have been meticulously clipped and pinned to fit the correct SP5K style shelf...
    HKP-20064
    $149.95
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  • New - H&K HK MR556/416 Battle Grip Storage Cap Pin - HKP-16861 HK416, MR556 Storage Cap Pin for Pistol Grips
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    HK416, MR556 Storage Cap Pin for Pistol Grips

    H&K Heckler & Koch

    $4.95
    H&K HK MR556/416 Battle Grip Storage Cap Pin  
    HKP-16861
    $4.95
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    $4.95
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  • New - H&K 21E/23E/11E/13E Hammer Spring - HKP-15453
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    HK21E, HK23E, HK11E, HK13E Hammer Spring

    H&K Heckler & Koch

    $19.95
    HK German HK21E, 23E, 11E & 13E Hammer Spring - German This is the heaviest HK hammer spring available for the roller lock family of firearms. The factory correct hammer spring for the beltfed series of firearms. Made in Germany and production has...
    HKP-15453
    $19.95
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    $19.95
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  • Used - H&K 91/G3 (7.62x51/.308) SEF Navy Style Trigger Group HK G3 - Used Excellent - HKP-18670 HK91, G3 SEF Navy Style Trigger Group HK G3 - Used Excellent
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    HK91, G3 SEF Navy Style Trigger Group HK G3 - Used Excellent

    H&K Heckler & Koch

    $389.95
    H&K 91/G3 (7.62x51/.308) Navy Style Trigger Group (SEF) - Used Excellent HK factory German HK G3 & HK 91 Full Auto Trigger Group Complete. Pulled from German military HK G3 rifles. These work great as spares or for collectible items. Used in...
    HKP-18670
    $389.95
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    $389.95
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  • New - RCM HK 51 (7.62x51/.308) Barrel - Threaded 15x1 RH - HKP-02391 HK51 Barrel - 7.62 / .308 - 8.375" - Threaded 15x1 RH
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    HK51 Barrel - 7.62 / .308 - 8.375" - Threaded 15x1 RH

    RCM

    $164.95
    RCM HK 51 (7.62x51/.308) Barrel - Threaded 15x1 RH Crafted to precise HK51 specifications, this barrel utilizes HK's renowned cold hammer forged (CHF) process. Features include a knurled sight ring, splined design for secure flash hider attachment, and a...
    HKP-02391
    $164.95
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    $164.95
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  • New - H&K MP5 40/10 Magazine Release Lever Spring - HKP-18109 HK MP5 Magazine Release Lever Spring - 10mm and .40 S&W
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    HK MP5 Magazine Release Lever Spring - 10mm and .40 S&W

    H&K Heckler & Koch

    $9.95
    H&K MP5 40/10 Magazine Release Lever Spring The needed spring that fits in the mag release lever and the magwell for the MP5 40/10 series. Made in Germany and no longer offered or made. These units are the latest design with the ground ends for...
    HKP-18109
    $9.95
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    $9.95
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  • New - PTR Tactical, Keymod & M-LOK, Retainer Handguard Screw - HKP-16743
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    HK MP5, MP5K, HK93, HK91 Handguard Retainer Screw - Tactical, Keymod, and M-LOK

    PTR

    $4.95
    PTR Tactical, Keymod & M-LOK, Retainer Handguard Screw This is the screw that is used on all the Tactical, Keymod, and M-LOK forearms (MP5K, MP5, HK93, HK91). A great spare to have in case the original screw gets lost.
    HKP-16743
    $4.95
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    $4.95
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  • New - H&K Selector Catch Lever for HK Ambidextrous Trigger Packs - HKP-01636
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    HK Selector Catch Lever - Ambi Trigger Packs

    H&K Heckler & Koch

    $26.95
    HK German Ambidextrous Trigger Pack Axle Catch Lever This is the lever that allows you to take apart any of the ambidextrous trigger packs. This lever takes the spring tension off the left and right side selector levers, allowing you to remove and...
    HKP-01636
    $26.95
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    $26.95
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  • New - H&K Enhanced Buffer Tube - HKP-18499 H&K Enhanced Buffer Tube H&K Heckler & Koch HKP-18499
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    HK416, MR556 Buffer Tube - Enhanced

    H&K Heckler & Koch

    $199.95
    FDE HK 416, MR556 OTB (over the beach) Buffer Tube, Receiver Extension - Commercial Genuine HK German manufactured 416 & MR556 latest generation, marine environment & over the beach buffer tube. Each commercial buffer tube has built in drainage...
    HKP-18499
    $199.95
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    $199.95
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  • Out Of Stock
    On Sale
    HK MP5K, AP5P OEM Picatinny Rail MKE HKP-22334 HK MP5K, AP5P OEM Picatinny Rail MKE HKP-22334

    HK MP5, MP5K, AP5-P Optic Mount - Picatinny

    MKE

    Now: $39.95
    Was: $49.95
    MKE HK MP5K, AP5P OEM Picatinny Optic Rail MKE Picatinny optic rail for the MP5K platform.  OEM part for the Century AP5-P and AP5-M.  This rail is the K specific length but is compatible with full size MP5 guns as well. Compatible With: HK...
    HKP-22334
    Now: $39.95
    Was: $49.95
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    Now: $39.95
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  • New - H&K MR556/MR762 A4 45 Degree Ambi Safety Lever - HKP-22034 HK MR556, MR762 A4 45 Degree Ambi Safety Lever
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    HK MR556, MR762 A4 45 Degree Ambi Safety Lever

    H&K Heckler & Koch

    $52.00
    H&K MR556/MR762 A4 45 Degree Ambi Safety Lever Genuine H&K ambidextrous 45-degree safety lever for MR556 and MR762 A4 rifles. Includes: Right safety lever Left safety lever Safety lever clamping sleeve Compatible With: HK...
    HKP-22034
    $52.00
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    $52.00
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  • New - H&K 93,33,53 and MP5 A2 Fixed Stock - HKP-21818-M HK33, HK53, HK93, MP5 A2 Fixed Stock
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    HK33, HK53, HK93, MP5 A2 Fixed Stock

    H&K Heckler & Koch

    $139.95
    H&K 93,33,53  and MP5 A2 Fixed Stock This H&K G3 stock section and buttpad combo is designed to enhance the functionality and comfort of your HK 93,53 and MP5 firearm. The stock section provides improved strength and stability, while the...
    HKP-21818-M
    $139.95
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    $139.95
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