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 - KCI 30 Round MP5 9mm Magazine - 10 Pack - Cerakoted - HKP-22066 HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - 10 Pack - Cerakoted
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    HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - 10 Pack - Cerakoted

    KCI

    $349.95
    KCI 30 Round MP5 9mm Magazine - 10 Pack Get reliable performance and a splash of style with the KCI 30 Round MP5 9mm Magazine 10-Pack. Cerakoted for durability, this pack includes two magazines in each of five distinct colors—perfect for quick...
    HKP-22066
    $349.95
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  • New - H&K MR556 A4/416 A5 Gas Block Spring - HKP-22060 HK416 A5, MR556 A4 Gas Block Spring
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    HK416 A5, MR556 A4 Gas Block Spring

    H&K Heckler & Koch

    $19.95
    HK Heckler and Koch HK416 A5, MR556 A4 Gas Block Spring German-made gas block spring for the HK MR556 A4 and HK416 A5. Compatible With: MR556 A4 HK416 A5
    HKP-22060
    $19.95
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  • New - H&K MR556/MR762 A4 Disconnector - HKP-21969
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    HK MR556, MR762 A4 Disconnector

    H&K Heckler & Koch

    $18.95
    H&K MR556/MR762 A4 Disconnector Factory H&K disconnector for use in MR556 A4 and MR762 A4 platforms.   Compatible With: HK MR556 A1/A4 HK MR762 A1/A4  
    HKP-21969
    $18.95
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  • New - H&K MR762 A4 Complete Charging Handle - HKP-21967 HK MR762 A4 Charging Handle
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    HK MR762 A4 Charging Handle

    H&K Heckler & Koch

    $199.95
    H&K MR762 A4 Charging Handle Upgrade your MR762 or HK417 style rifle with this factory H&K ambidextrous charging handle, engineered for smooth, reliable operation from either side. Built to Heckler & Koch’s exacting standards, this...
    HKP-21967
    $199.95
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  • New - H&K 417/MR762/G28 Complete Buffer Tube - HKP-21872 HK416, MR556 Buffer Tube
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    HK416, MR556 Buffer Tube

    H&K Heckler & Koch

    $176.95
    H&K HK416, MR556 Complete Receiver Extension/Buffer Tube Genuine German complete receiver extension for the HK416 5.56/.223 platforms. Compatible With: HK416 MR556 ***Packaging may say "G26".  This was a typo by HK.
    HKP-21872
    $176.95
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  • Out Of Stock
    New - H&K HK11 Recoil Spring - HKP-21858

    HK11 Recoil Spring

    H&K Heckler & Koch

    $18.95
    H&K HK11 Recoil Spring This German-made HK11 recoil spring is longer than the standard G3 springs but has the same pattern. As a project spring, this part can be cut down for use on G3 and HK33-type recoil rods. Many U.S.-built HK11's use G3 springs...
    HKP-21858
    $18.95
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  • On Sale
    New - Strike Industries HK MP5 9mm Dual Folding Stock w/ Adapter - HKP-21768-M HK MP5 Dual Folding Stock with Adapter - 9mm
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    HK MP5 Dual Folding Stock with Adapter - 9mm

    HKP HK Parts / Strike Industries

    Now: $274.95
    Was: $319.95
    HKP HK Parts and Strike Industries 9mm Dual Folding Stock with Adapter for HK MP5  The Strike Industries Dual Folding Stock paired with the HKP MP5 picatinny adapter is one of the best options on the market for those looking for a light,...
    HKP-21768-M
    Now: $274.95
    Was: $319.95
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  • New - Nefarious Arms HK MR556/416 11" A5 Barrel - HKP-21839 HK416 A5, MR556 A4 Barrel - 5.56 - 11" - Threaded 1/2"x28 - A5
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    HK416 A5, MR556 A4 Barrel - 5.56 - 11" - Threaded 1/2"x28 - A5

    Nefarious Arms

    $594.95
    Nefarious Arms HK MR556/HK416 11" A5 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-21839
    $594.95
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  • Out Of Stock
    New - B&T 39mm Picatinny QD Skeleton Mount for Aimpoint T-Series - HKP-21771 Picatinny Optic Mount - 39mm - Skeleton - Aimpoint T-Series

    Picatinny Optic Mount - 39mm - Skeleton - Aimpoint T-Series

    B&T Brugger & Thomet

    $150.00
    B&T 39mm Picatinny QD Skeleton Mount for Aimpoint T-Series The B&T QD skeleton mount for Aimpoint T-Series offers a 39mm elevated profile for improved sight alignment, ideal for night vision setups requiring clearance over forward-mounted IR...
    HKP-21771
    $150.00
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    $150.00
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  • Out Of Stock
    New - H&K HK MR762 Single Magazine Pouch - Tan Camo - HKP-21622 HK MR762 Single Magazine Pouch - Tan Camo

    HK MR762 Single Magazine Pouch - Tan Camo

    H&K Heckler & Koch

    $89.95
    H&K HK MR762 Single Magazine Pouch - Tan Camo Factory HK single magazine pouch, Molle compatible Compatible With: HK MR762
    HKP-21622
    $89.95
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  • New - H&K MP5K 9mm Complete Bolt Group - Suppressed - HKP-21613 HK MP5K Bolt Group - Complete - 9mm - Suppressed
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    HK MP5K Bolt Group - Complete - 9mm - Suppressed

    H&K Heckler & Koch

    $2,259.95
    Heckler and Koch MP5K 9mm Complete Bolt Group - Suppressed Complete factory German MP5K full-auto bolt group assembly configured with an 80-degree #28 German locking piece for suppressed use. This drop-in bolt carrier group is built with original German...
    HKP-21613
    $2,259.95
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  • HK G3K, HK33 Flash Hider - 4 Prong Enclosed
HK G3K, HK33 Flash Hider - 4 Prong Enclosed
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    HK G3K, HK33 Flash Hider - 4 Prong Enclosed

    RCM

    $187.95
    RCM HK G3K & HK33 Flash Hider - 4 Prong - Enclosed End The RCM G3K flash hider can be welded to a 12.69" barrel to achieve a non-SBR OAL of 16 plus inches or add to any other configuration. Made in the US from ordnance grade steel and counts as 1...
    HKP-21598
    $187.95
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