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 - Geissele HK MR762/MR308 Trigger - HKP-16463 HK417, MR762, MR308 Trigger - Geissele
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    HK417, MR762, MR308 Trigger - Geissele

    Geissele

    $479.95
    HK MR 762 Trigger- Geissele The HK MR762 trigger is similar to our SSA with a 4.5 total pull weight. It can be used in both the HK 762 and semi-auto HK 417's. Please note: After installing the MR762 trigger you must cock the hammer in order to engage the...
    HKP-16463
    $479.95
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  • New - G36E Bayonet Lug Assembly HK German - HKP-00354
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    HK G36E Bayonet Lug - Factory

    H&K Heckler & Koch

    $89.95
    HK German Factory G36E Bayonet Lug  Rare and hard to find. The inside diameter (ID) is 16mm in size. A great alternative for those that do SL8 conversions as well as M27 look clone barrel conversions. You will need the G36 bayonet lug roll pin as it...
    HKP-00354
    $89.95
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  • New - H&K G36/SL8 (5.56/.223) Cocking Handle Axle Pin - HKP-01877
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    HK G36, SL8 Cocking Handle Axle Pin

    H&K Heckler & Koch

    $11.95
    HK German G36 & SL8 Cocking Handle Axle Pin This is the rivet pin that is used to attach the swiveling cocking handle to the body of the carrier. These can be replaced as they break and wear.  Compatible With: HK G36 HK SL8
    HKP-01877
    $11.95
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  • New - H&K UMP (9mm) Extractor - HKP-00266
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    HK UMP Extractor - 9mm

    H&K Heckler & Koch

    $60.95
    New HK German USC/UMP 9mm Extractor This is the perfect spare part to have for your UMP or USC 9mm conversion. Hard to find and only available here at HKPARTS.
    HKP-00266
    $60.95
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    $60.95
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  • New - HKP MP5 40/10 Magazine Floor Plate - HKP-16507 HK MP5 Magazine Floorplate - .40 S&W, 10mm - US
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    HK MP5 Magazine Floorplate - .40 S&W, 10mm - US

    HKP HK Parts

    $9.95
    HKP HK Parts Magazine Floor Plate for HK MP5 40,10 Great for spare parts and also a much needed US made compliant part for U.S. compliance.
    HKP-16507
    $9.95
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    $9.95
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  • New - HKP 94, 93 Semi Grip Frame SEF - Metal - HKP-16470 HK94, HK93 Semi Grip Frame SEF - Metal
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    HK94, HK93 Semi Grip Frame SEF - Metal

    HKP HK Parts

    $189.95
    HK MP5,94, 33,93 Style Metal Grip Frame  For Semi Auto Shelves Each German HK housing started out as a factory HK German select fire metal housing. Each housing was modified by welding in a factory correct semi auto shelf, clipped from a double tang...
    HKP-16470
    $189.95
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  • New - Magpul RSA - Rail Sling Attachment - HKP-02423 Magpul RSA - Rail Sling Attachment Magpul HKP-02423
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    Magpul RSA - Rail Sling Attachment

    Magpul

    $29.95
    Magpul RSA - Rail Sling Attachment Attaches to Picatinny rails for an additional point of attachment for slings.
    HKP-02423
    $29.95
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  • New - H&K MR556 A4 16.5″ 5.56 M-LOK Upper Receiver Kit - HKP-21909 HK MR556 A4 Upper Receiver Kit - 16.5″ - 5.56 - M-LOK
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    HK MR556 A4 Upper Receiver Kit - 16.5″ - 5.56 - M-LOK

    H&K Heckler & Koch

    $1,939.00
    H&K MR556 A4 16.5″ 5.56 M-LOK Upper Receiver Kit This kit includes a complete upper receiver/barrel assembly, allowing Mil-Spec 5.56mm AR-style rifles to be retrofitted to HK’s piston and pusher rod system. This system utilizes a piston...
    HKP-21909
    $1,939.00
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    $1,939.00
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  • New - H&K HK SL8, HK G36 Extended Bottom Rail Kit - Black - HKP-16549 HK SL8, 36 Extended Bottom Rail Kit
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    HK SL8, 36 Extended Bottom Rail Kit

    H&K Heckler & Koch

    $99.95
    H&K HK SL8, HK G36 Extended Bottom Rail Kit This rail is the factory correct HK German manufactured bottom rail for the G36 or SL8 rifle. This allows the longest rail on the bottom of the polymer forearm. 9.25" in length overall. Comes with all...
    HKP-16549
    $99.95
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  • New - H&K HK G36/SL8 Extractor - HKP-00287 HK G36, SL8 Extractor
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    HK G36, SL8 Extractor

    H&K Heckler & Koch

    $79.95
    G36 & HK SL8 German Extractor For Bolt Head New HK German. This is a great item to keep as a spare. Compatible With: All G36 Variants SL8-1, SL8-6
    HKP-00287
    $79.95
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  • On Sale
    New - HK G36/SL8 Extractor - HKP-18882 HK G36, SL8 Extractor
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    HK G36, SL8 Extractor

    USA

    Now: $39.95
    Was: $67.95
    G36 & HK SL8 Extractor For Bolt Head Compatible With: All G36 variants SL8-1, SL8-6
    HKP-18882
    Now: $39.95
    Was: $67.95
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    Now: $39.95
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  • New - HK 91/G3 (7.62x51/.308) Bolt Head Complete - US Made - HKP-00839 HK91, G3 Bolt Head Complete - US Made
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    HK91, G3 Bolt Head Complete - US Made

    USA

    $149.95
    Bolt Head - Complete This item is a complete bolt head using a combination of new HK German and New US-made parts. This part counts as 1 US-made compliant part for the 922r compliance. Compatible With: HK 91 HK G3 PTR-91 SAR3/8 Other HK .308 Clones or...
    HKP-00839
    $149.95
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    $149.95
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