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 - H&K HK UMP/USC Rear Sight Support Roll Pin - HKP-02155
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    HK UMP, USC Sight Support Roll Pin - Rear

    H&K Heckler & Koch

    $9.95
    HK UMP & USC Rear Sight Support Roll Pin This is the axle pin that holds the rear sight assembly to the rear sight housing of the receiver on the USC or UMP firearm.
    HKP-02155
    $9.95
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  • New - HK G36/MP7 (4.6x30/5.56/.223) Firing Pin Bolt O-Ring - HKP-18373 HK MP7, G36, Bolt O-Ring - Firing Pin - US
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    HK MP7, G36, Bolt O-Ring - Firing Pin - US

    USA

    $5.95
    HK G36 & MP7 Firing Pin Bolt O-ring. This is also the O-ring for the retaining pin for the MP7- US. Compatible With: HK G36 HK MP7
    HKP-18373
    $5.95
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    $5.95
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  • New - HK G36/SL8 (5.56/.223) Cocking Handle Axle Pin - HKP-18367 HK G36, SL8 Cocking Handle Axle Pin - USA
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    HK G36, SL8 Cocking Handle Axle Pin - USA

    USA

    $10.95
    HK G36, SL8 Cocking Handle Axle Pin - US Made 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 models HK SL8 models
    HKP-18367
    $10.95
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  • HK UMP Magazine Release - Enhanced - Billeted HK UMP Magazine Release - Enhanced - Billeted
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    HK UMP Magazine Release - Enhanced - Billeted

    HKP HK Parts

    $34.95
    HKP HK Parts Enhanced Paddle Magazine Release for HK UMP This is a very common replacement part as they are fairly easy to break on the UMP lower. With this new mag release, you'll get a wider release as well as a much more durable part. Simple &...
    HKP-18758
    $34.95
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  • Out Of Stock
    New - H&K 91/G3 (7.62x51/.308) - 15 Round Magazine - HKP-17006 HK91, G3 - 15 Round Magazine

    HK91, G3 - 15 Round Magazine

    H&K Heckler & Koch

    $59.95
    HK G3 & HK 91, PTR91 - 15 Round Magazine The HK G3, 91 ,PTR magazine is made by PTR from a German aluminum HK magazine and converted to 15 rounds. Perfect for states such as NJ that only allow a 15 round mag capacity. As an added bonus this magazine...
    HKP-17006
    $59.95
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  • New - H&K 91/G3/MSG90 (7.62x51/.308) 2x20 Round Aluminum Mags W/ Cloth Mag Pouch - HKP-15792 HK91, G3, PTR TWO Magazines with Cloth Mag Pouch - 20 round
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    HK91, G3, PTR TWO Magazines with Cloth Mag Pouch - 20 round

    H&K Heckler & Koch

    $49.95
    H&K 91/G3/MSG90 (7.62x51/.308) 2x20 Round Aluminum Mags W/ Cloth Mag Pouch  2 X New/like new HK German 20 round aluminum magazine with green cloth mag pouch combo deal: 2 X 20 round aluminum magazines and green cloth mag pouch. Compatible...
    HKP-15792
    $49.95
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  • Out Of Stock
    New - PTR Standard Stock Buttpad - HKP-00375 PTR  Standard Stock Buttpad

    PTR Standard Stock Buttpad

    PTR

    $39.95
    HK U.S. Made Standard Stock Butt pad Perfect for A2 fixed stocks. This item is hard rubber and softer than a factory standard butt pad - that is hard plastic only and prone to cracking. Super durable and better than factory HK. This is the perfect...
    HKP-00375
    $39.95
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  • Out Of Stock
    New - H&K 93/53/33 (5.56/.223) 25 Round Magazine Spring - HKP-00483

    HK33, HK53, HK93 Magazine Spring - 25 Round

    H&K Heckler & Koch

    $11.95
    HK 93, 33, & 53 Magazine Replacement Spring For 25-Round Magazines Hard to find and a must-have spare for your HK mags. No longer in production.
    HKP-00483
    $11.95
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  • New - B&T MP5, MP5K Low Mount For Trijicon ACOG - HKP-17284
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    HK MP5, SP5K Optic Mount, Trijicon ACOG - 84mm - Low Profile

    B&T Brugger & Thomet

    $169.95
    B&T Mounting Rail NAR for HK MP5 & MP5K with Trijicon ACOG THIS MOUNT HAS BEEN DISCONTINUED.  ONLY A COUPLE UNITS LEFT. Specifications: Color: Black Height max: 31.5 mm Length max: 84 mm Material: Aluminum Treatment: Hardcoat...
    HKP-17284
    $169.95
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  • New - Magpul 25 Round PMAG M3 Magazine - 7.62x51/.308 - HKP-16908 Magpul 25 Round PMAG M3 Magazine - 7.62x51/.308 Magpul HKP-16908
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    Magpul M3 PMAG Magazine - 7.62x51 / .308 - 25 Round

    Magpul

    $24.95
    Magpul PMAG 25-LR 25-Round 7.62 NATO Magpul M3 PMAG for SR25/M110 pattern rifles.  Features a true 25-round capacity, constant-curve body, and snap-on impact/dust cover. Designed specifically for military-issue MK11/M110 rifles and mil-spec...
    HKP-16908
    $24.95
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  • Out Of Stock
    New - H&K MR556 A4/416 Rear Takedown Pin - HKP-22029 HK416, MR556, HK417, MR762 Takedown Pin - Rear - A4 Style

    HK416, MR556, HK417, MR762 Takedown Pin - Rear - A4 Style

    H&K Heckler & Koch

    $43.95
    H&K MR556, HK416, HK417, MR762 Rear Takedown Pin Factory A4 rear takedown pin.  Will work for A1 and A4 applications.   Compatible With: HK MR556 A1 and A4 HK416 HK MR762 A1 and A4 HK417 AR-14, M4, M16    
    HKP-22029
    $43.95
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  • New - Nefarious Arms HK 416/MR556 10.4" A3 Barrel - HKP-21335 HK416, MR556 Barrel - 5.56 - 10.4" - Threaded 1/2"x28 - A3
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    HK416, MR556 Barrel - 5.56 - 10.4" - Threaded 1/2"x28 - A3

    Nefarious Arms

    $594.95
    Nefarious Arms HK 416/MR556 10.4" A3 Barrel ***THE BARREL EXTENSION RIM IS MARKED "HAUS" DUE TO AN ERROR BY THE BARREL EXTENSION SUPPLIER.  THE MARKING IS NOT VISIBLE ONCE INSTALLED.  THESE BARRELS ARE GENUINE NEFARIOUS BARRELS AS NEFARIOUS...
    HKP-21335
    $594.95
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    $594.95
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