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 - JMAC Customs SS-8 w/ 1913 Folding Mech - HKP-20146 Folding Stock - SS-8 with 1913 Folding Mech

    Folding Stock - SS-8 with 1913 Folding Mech

    JMAC Customs

    $284.99
    JMAC Customs SS-8 Folding Stock w/1913 Folding Mech Skeleton stock 8" with 1913 folding mech (not assembled) 2x integrated QD sling socket 8" length Drilled and tapped for optional cheek risers (will be available in the future) Compatible with SIG...
    HKP-20146
    $284.99
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  • New - H&K HK MR762 M-LOK 14.7" Handguard - Black - HKP-19775 HK MR762 M-LOK Handguard - 14.7"
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    HK MR762 M-LOK Handguard - 14.7"

    H&K Heckler & Koch

    $294.95
    H&K HK MR762 M-LOK 14.7" Handguard - Black This handgurad is 14.7" long featuring a flat top Picatinny Rail and M-LOK attachment points. Compatible With: HK MR762
    HKP-19775
    $294.95
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  • Used - Clubfoot Stock For HK .308 Rifles - Green - HKP-19667 HK91, G3, PTR Clubfoot Stock - .308 Rifles - Green
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    HK91, G3, PTR Clubfoot Stock - .308 Rifles - Green

    Michaels Machines

    $299.95
    US Michaels Machines Clubfoot Stock for HK G3, HK91, PTR-91 and Clones HK clubfoot stock comes fully assembled with both US and German HK parts. Includes: HK21E Clubfoot central stock section (counts as one US compliant part) HK heavy rubber buttpad US...
    HKP-19667
    $299.95
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  • New - H&K HK MR762 Ejection Door Clamping Sleeve - HKP-16518
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    HK MR762 Ejection Door Clamping Sleeve

    H&K Heckler & Koch

    $4.95
    H&K HK MR762 Ejection Door Clamping Sleeve Compatible With: HK MR762
    HKP-16518
    $4.95
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  • New - H&K HK MR762/417/G28 E1 Extended Ambidextrous Charging Handle - Black - HKP-16599 HK417, MR762, G28 E1 Charging Handle - Extended - Ambidextrous
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    HK417, MR762, G28 E1 Charging Handle - Extended - Ambidextrous

    H&K Heckler & Koch

    $209.95
    H&K HK MR762/417/G28 E1 Extended Ambidextrous Charging Handle HK German MR762/HK 417 extended charging handle. The unique release latch can be swapped from left to right sides to make each setup ambi friendly and modular. HK's own design boasts an...
    HKP-16599
    $209.95
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  • New - H&K HK 416 Roll Pin For 33mm Front Folding Sight - HKP-14144
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    HK416 Front Sight Roll Pin - Folding 33mm

    H&K Heckler & Koch

    $4.95
    HK 416 Roll Pin For 33mm Front Folding Sight This version is the enhanced (longer) roll pin for a more secure fitment. 
    HKP-14144
    $4.95
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  • New - HKP HK MR556/416 SS Firing Pin - HKP-01756
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    HK416, MR556 SS Firing Pin

    HKP HK Parts

    $29.95
    Firing Pin For HK 416 & MR556 Firearm - USA Made from hardened stainless steel and comes new in the white. Compatible With: HK416 HK MR556 HK CR556 HK M27
    HKP-01756
    $29.95
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  • New - H&K HK MR556 Operator's Manual - HKP-02441
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    HK MR556 Operator's Manual

    H&K Heckler & Koch

    $19.95
    HK MR556 Operator's Manual
    HKP-02441
    $19.95
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  • New - H&K G36/SL8 (5.56/.223) Firing Pin Retaining Pin - HKP-02469 HK G36, SL8 Firing Pin Retaining Pin
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    HK G36, SL8 Firing Pin Retaining Pin

    H&K Heckler & Koch

    $10.95
    H&K G36/SL8 (5.56/.223) Firing Pin Retaining Pin Compatible With: HK G36 HK SL8
    HKP-02469
    $10.95
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  • New - H&K G36/SL8 (5.56/.223) Bolt Catch Spring - HKP-01861
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    HK G36, SL8 Bolt Catch Spring

    H&K Heckler & Koch

    $9.95
    HK German G36 & SL8 Bolt Catch Spring  
    HKP-01861
    $9.95
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  • HK UMP Paddle Magazine Release - Extended HK UMP Paddle Magazine Release - Extended
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    HK UMP Paddle Magazine Release - Extended

    HKP HK Parts

    $34.95
    HKP HK Parts Extended Paddle Magazine Release for HK UMP 9mm, .40 S&W, .45 ACP Billeted alloy UMP magazine release. This is a very common repair and replacement part as they are fairly easy to break on the UMP lower. With this new metal mag release...
    HKP-17919
    $34.95
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  • New - HDPS HK UMP/USC Birdcage Flash Hider For Threaded Barrels - Threaded 16x1 LH - HKP-02579 HK UMP, USC Flash Hider  - Birdcage - Threaded 16x1 LH
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    HK UMP, USC Flash Hider - Birdcage - Threaded 16x1 LH

    HDPS

    $137.95
    HDPS HK UMP/USC Birdcage Flash Hider For Threaded Barrels - Threaded 16x1 LH Designed for threaded barrels with a 16x1 LH thread, this flash suppressor is modeled after the HK UMP flash suppressor for flanged barrels. It’s perfect for those who...
    HKP-02579
    $137.95
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