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 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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  • HK91, G3, MSG90 10 Round Magazine - Alloy H&K Heckler & Koch HKP-22418 HK91, G3, MSG90 10 Round Magazine - Alloy H&K Heckler & Koch HKP-22418
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    HK91, G3, PTR Magazine - 10 Round - Alloy

    H&K Heckler & Koch

    $37.95
    H&K HK91, G3, MSG90 10 Round Magazine - Alloy This part counts as 1 US-made part for 922r compliance for HK rifles. Manufactured by HK and converted to ten round capacity in the United States using a US-made floorplate. Compatible With: HK91 HK...
    HKP-22418
    $37.95
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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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  • New - B&T HK G36/SL8 Quad Rail Handguard - Black - HKP-16897 HK G36/SL8 Quad Rail Handguard
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    HK G36/SL8 Quad Rail Handguard

    B&T Brugger & Thomet

    $379.95
    B&T Handguard Quad Rail For HK G36 and SL8 New B&T Swiss manufactured G36 and SL8 quad rail system. Each unit comes with the complete quad rail as well as the rail covers and sling swivel for a sling.  Compatible With: HK G36 (Not...
    HKP-16897
    $379.95
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  • New - H&K HK MR762/417/G28 Handguard Rail System Screw - Black - HKP-16601 HK416, MR556, HK417, MR762 Handguard Locking Screw
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    HK416, MR556, HK417, MR762 Handguard Locking Screw

    H&K Heckler & Koch

    $16.95
    HK416, MR556, HK417, MR762 - Handguard Locking Screw Replacement handguard locking screw that secures the handguard to the upper receiver.  Compatible With: HK HK416 HK MR556 HK HK417 (2 required per handguard) HK MR762 (2 required per handguard)
    HKP-16601
    $16.95
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  • New - HKP HK MP5 40 Locking Roller -4 - HKP-17561
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    HKP HK MP5 40 Locking Roller -4

    HKP HK Parts

    $11.95
    HK US MP540 Undersized Locking Roller, -4 The proper roller size is essential for proper headspacing of bolt gap. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the size you need...
    HKP-17561
    $11.95
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  • New - HKP .45 ACP Titanium Thread Protector - Threaded 16x1 LH - HKP-18004
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    HK45 Thread Protector - 16x1 LH - Titanium

    HKP HK Parts

    $19.95
    HKP .45 ACP Titanium Thread Protector - Threaded 16x1 LH This new style .45 ACP tactical thread protector fits all HK45 full-size and compact barrels with 16x1 LH threads. Essential for protecting your threaded barrels and exposed threads, it preserves...
    HKP-18004
    $19.95
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  • New - H&K HK SL8/G36 Front Sight - Black - HKP-00638 HK SL8, G36 Front Sight
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    HK SL8, G36 Front Sight

    H&K Heckler & Koch

    $19.95
    HK German SL8/G36 (G36,G36K,G36C & SL8) Front Sight Post - New This item is the replacement polymer front sight post for the HK sight rails.
    HKP-00638
    $19.95
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  • New - H&K HK UMP/USC Rear Sight Support Roll Pin - HKP-02155
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    HK UMP, USC Rear Sight Support Roll Pin

    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 - H&K HK G36/SL8 Complete Recoil Rod Assembly - HKP-01057
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    HK G36, SL8 Complete Recoil Rod Assembly

    H&K Heckler & Koch

    $69.95
    Recoil Rod Assembly for HK G36 & SL8 New HK factory German G36/SL8 (fits all variants of SL8/G36) recoil rod assembly complete. Great for replacement or for a spare as these have been hard to find.
    HKP-01057
    $69.95
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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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  • Out Of Stock
    New - HKP HK G36C Barrel Front End Kit - HKP-18228 HK G36C Barrel Front End Kit - 5.56 / .223 - 8.9" - Threaded 15x1

    HK G36C Barrel Front End Kit - 5.56 / .223 - 8.9" - Threaded 15x1

    HKP HK Parts

    $889.95
    G36C Barrel Front End Barrel Kit - 223/556 New production HK G36C style barrel conversion kit and front end kit. Each kit will include the necessary parts to build a G38/SL8 variant into the G36KC barrel length variant as pictured. All you need is this...
    HKP-18228
    $889.95
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    $889.95
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