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 MR762 Lower Receiver Front Locking Pin - Black - HKP-16602 HK417, MR762 Takedown Pin - Front - A1 Style
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    HK417, MR762 Takedown Pin - Front - A1 Style

    H&K Heckler & Koch

    $59.95
    H&K HK MR762 Lower Receiver Front Takedown Pin - A1 Style This is the front (large) takedown pin with ball detent and locking mechanism installed. The idea behind this type of system is to decrease the movement of the upper and lower receivers and...
    HKP-16602
    $59.95
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  • New - H&K HK MR762/417/G28 Ejection Cover Axle Spring - HKP-16753
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    HK417, MR762, G28 Ejection Cover Axle Spring

    H&K Heckler & Koch

    $9.95
    H&K HK MR762/417/G28 Ejection Cover Axle Spring New Hk German manufacture for the MR762 & HK 417 firearm. The spring is used on the axle and ejection port cover door to allow it to be closed and spring open. Compatible With: HK MR762 HK 417 HK...
    HKP-16753
    $9.95
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    $9.95
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  • On Sale
    New - HKP HK MR556/CR556/MR762 H-Key 14 Rail Segment - HKP-17846 HK MR556, MR762 H-Key 14 Rail Segment
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    HK MR556, MR762 H-Key 14 Rail Segment

    HKP HK Parts

    Now: $17.95
    Was: $39.95
    HKP HK MR556/CR556/MR762 H-Key 14 Rail Segment 14 slot rail segment for the new "HKey" style forearms. This rail section is designed to fit and attach to any of the new HKey style forearms now being shipped on the MR556, CR556, MR762 and similar models...
    HKP-17846
    Now: $17.95
    Was: $39.95
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  • New - H&K HK MR556/416 Ejector For Bolt Head - HKP-00037
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    HK416, MR556 Ejector For Bolt Head

    H&K Heckler & Koch

    $23.95
    H&K HK MR556/416 Ejector For Bolt Head HK German factory part.  Compatible With: HK MR556 HK 416
    HKP-00037
    $23.95
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  • New - H&K HK MR556/416 Charging Handle Release Latch - HKP-16553 HK416, MR556 Charging Handle Release Latch
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    HK416, MR556 Charging Handle Release Latch

    H&K Heckler & Koch

    $39.95
    H&K HK MR556/416 Charging Handle Release Latch Perfect replacement item for the MR556 & HK 416 charging handle. New HK German manufacture. These can become chewed up and damaged with a hard drop or with heavy use. This is a great item to keep on...
    HKP-16553
    $39.95
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  • New - Magpul 5.56 NATO Mag Assist - 3 Pack - HKP-17320
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    Magazine Assist - 5.56 - 3 Pack

    Magpul

    $9.95
    ORIGINAL MAGPUL® 5.56 NATO, 3 PACK When installed on the base of a 5.56x45 rifle magazine, the original Magpul provides improved speed and control during high stress, tactical magazine changes. Durable synthetic rubber loop with recessed rough...
    HKP-17320
    $9.95
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  • New - HDPS HK UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Trigger - HKP-02134 HK UMP, USC, G36, SL8 Trigger
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    HK UMP, USC, G36, SL8 Trigger

    HDPS

    $139.95
    HDPS US-Made Steel Trigger - USC & SL8 HDPS US-made triggers are ideal for meeting US 922r compliance as this counts as one of the needed parts when converting the HK USC to HK semi-auto UMP and the HK SL8 to semi-auto G36. Compatible...
    HKP-02134
    $139.95
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    $139.95
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  • New - H&K UMP (.40 S&W/.45 ACP/9mm) Release Lever Spring - HKP-01891
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    HK UMP Release Lever Spring

    H&K Heckler & Koch

    $9.95
    HK UMP Release Lever Spring For All UMP Lowers  
    HKP-01891
    $9.95
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  • New - Choate HK 91/G3 (7.62x51/.308) Adjustable Tactical Folding Stock - HKP-00884 HK91, G3 Adjustable Tactical Folding Stock
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    HK91, G3 Adjustable Tactical Folding Stock

    Choate

    $139.95
    HK G3, 91 & PTR Tactical Folding Stock Each stock is adjustable from 14 1/4" to 15 1/4" using the included adjustable spacer system, which will allow a full 2" range in adjustment for the specific user or mission requirements. Comes with all the...
    HKP-00884
    $139.95
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  • New - EBO HK 91/G3 (7.62x51/.308) Tungsten Full Auto Carrier - Made by EBO Under HK Contract - HKP-16572 HK91, G3 Bolt Carrier - Full Auto - Tungsten - Made by EBO Under HK Contract
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    HK91, G3 Bolt Carrier - Full Auto - Tungsten - Made by EBO Under HK Contract

    EBO

    $199.95
    Used HK Contract Greek (EBO) F/A Date Coded Tungsten Filled Bolt Carrier. HK German G3 F/A date coded bolt carrier with the tungsten inserts. The tungsten inserts and upgrade is ideal for those that are having bolt bounce issues or want the smoothest...
    HKP-16572
    $199.95
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  • New - HKP HK 91/G3/MSG90 5 Round Magazine - Steel - (7.62x51/.308) - HKP-16250-M HK91, G3, PTR Magazine - 5 Round
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    HK91, G3, PTR Magazine - 5 Round

    HKP HK Parts

    $79.95
    HKP HK 91/G3/MSG90 5 Round Magazine - Steel - (7.62x51/.308) 5 Round German Steel 308 Magazine With US Made Floorplate (Counts as 1 US made Part for 922R compliance) For HK Rifles.This magazine is made by Heckler and Koch & converted to five rounds...
    HKP-16250-M
    $79.95
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  • New - HKP MP5 & HK94 Vented Wide Forearm - Vertical - HKP-16856 HK MP5, HK94 Vented Wide Handguard - Vertical
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    HK MP5, HK94 Vented Wide Handguard - Vertical

    HKP HK Parts

    $44.95
    HKP MP5 & HK94 Vented Wide Forearm - Vertical New US manufactured (922r compliant) HK MP5 & HK94 vented wide handguard with the 90 degree vents. This style of venting allows better handling and superior barrel cooling abilities. Available...
    HKP-16856
    $44.95
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