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 MR556/416 10.4" Vented Upper Gas Block - HKP-18056 HK416, MR556 Vented Upper Gas Block - 10.4"
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    HK416, MR556 Vented Upper Gas Block - 10.4"

    H&K Heckler & Koch

    $139.95
    H&K HK MR556/416 10.4" Complete Vented Upper Gas Block New HK German manufacture newest "VENTED" version direct from HK Germany. Great upgrade part for existing 10.4" uppers that have the older style non-vented gas block or to use on the MR556 and HK...
    $139.95
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  • New - HKP 53 (5.56/.223) Cocking Tube - HKP-00197 HK53 Cocking Tube
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    HK53 Cocking Tube

    HKP HK Parts

    $139.95
    HKP 53 (5.56/.223) Cocking Tube New cocking tube made in the US. Made to the exact HK specifications as the factory HK53 German cocking tube. This is the only factory-correct HK53 cocking tube available, as HK Germany does not offer this part separately...
    $139.95
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  • New - H&K Burst Trigger Pack Compression Rod Spring - HKP-16199
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    HK90 Series Compression Spring for Shifter Rod on Burst Trigger Packs

    H&K Heckler & Koch

    $10.95
    H&K Burst Trigger Pack Compression Rod Spring Burst pack compression spring for compression rod found in all HK Burst Trigger Packs. This part, along with the compression rod, is the number one most common wear or breakage parts in HK Burst Packs...
    $10.95
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  • New - HKP 9mm Ambidextrous US Made Trigger Pack - 4 U.S. 922r Parts - HKP-18269 HKP 9mm Ambidextrous US Made Trigger Pack - 4 U.S. 922r Parts
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    HKP 9mm Ambidextrous US Made Trigger Pack - 4 U.S. 922r Parts

    HKP HK Parts

    $309.95
    HKP 9mm Ambidextrous US Made Trigger Pack - 4 U.S. 922r Parts HK MP5/94 9mm Semi-Auto Trigger Pack Complete. Assembled and ready install on your firearm. The components that count towards 4 of the 922r compliant parts include the trigger pack box,...
    $309.95
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  • New - B&T HK 91/G3 (7.62x51/.308) Low Profile Mount - Extended - HKP-16873 HK91, G3 Optic Mount - 220mm - Low Profile - Extended Picatinny Rail
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    HK91, G3 Optic Mount - 220mm - Low Profile - Extended Picatinny Rail

    B&T Brugger & Thomet

    $199.95
    B&T Mounting Rail Low Profile Mount for HK G3, Long Extended Version Low profile rail that allows the use of iron sights while installed. Specifications: Color: Black Height max: 30.7 mm Length max: 220 mm Material: Aluminum NATO Accessory Rails:...
    $199.95
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  • New - German HK 416, MR556 - Barrel Nut - HKP-02535 HK416 A1, MR556 Barrel Nut
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    HK416 A1, MR556 Barrel Nut

    H&K Heckler & Koch

    $53.95
    Heckler and Koch Barrel nut for MR556A1 rifle All steel barrel nut. This item is a must-have repair and replacement part for removal or when you have any work done to your barrel, as the barrel nut may become damaged in the removal and...
    $53.95
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  • New - MI HK MP5K 1913 End Plate Adapter - HKP-21584 HK MP5K Picatinny End Plate Adapter
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    HK MP5K Picatinny End Plate Adapter

    MI Midwest Industries

    $89.95
    MI HK MP5K 1913 Picatinny End Plate Adapter The Midwest Industries Picatinny end plate adapter opens up a myriad of off-the-shelf stock and brace options. The adapter installs in the same manner as the factory end cap with the factory push pins...
    $89.95
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  • Used - H&K HK G3 Standard Stock Buttpad - Like New - HKP-21479-M HK G3 Standard Stock Buttpad  - Like New
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    HK G3 Standard Stock Buttpad - Like New

    H&K Heckler & Koch

    $11.95
    H&K Standard Stock Buttpad - Like New This HK German-manufactured stock buttpad in dark OD green is the ultimate replacement for your worn-out or broken buttpad on your G3 A2 fixed stock. Handpicked to ensure the highest quality part possible...
    $11.95
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  • Out Of Stock
    New - Zenith - No Evil MP5 Magazine - HKP-20842 HK MP5 Magazine - No Evil

    HK MP5 Magazine - No Evil

    Zenith

    $43.95
    Zenith - No Evil MP5 Magazine The infamous three wise monkeys laser-etched into a Zenith magazine. Hear no evil, see no evil, speak no evil. Limited run so get them while you can! Application of oil is recommended depending on climate...
    $43.95
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  • New - HDPS HK UMP (.45 ACP) Threaded Barrel - 16x1 LH - HKP-02634 HK UMP Barrel - .45 ACP - 7.87" - Threaded 16x1 LH
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    HK UMP Barrel - .45 ACP - 7.87" - Threaded 16x1 LH

    HDPS

    $349.95
    HK UMP & USC 45 ACP 8" Threaded Barrel HDPS UMP barrels are perfect for the USC to UMP conversions and a replacement UMP .45 barrel. They are considered by many to be the finest US-made barrel available. This barrel is the same length as a factory HK...
    $349.95
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  • Used - H&K 91/G3 (7.62x51/.308) 20 Round Magazines - Shooter Value - 36 Pack - Alloy - HKP-16905 HK91, G3 20 Round Magazines - Shooter Value - 36 Pack - Alloy
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    HK91, G3 20 Round Magazines - Shooter Value - 36 Pack - Alloy

    H&K Heckler & Koch

    $244.95
    HK 91, G3, PTR Shooter Pack - 36 Pack of 20 Round Alloy Magazines Compatible With: HK G3 HK91 PTR Century Arms C308 SAR8, CETME Custom HK .308 clones or custom builds
    $244.95
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  • HK MP5 Surefire Lighted Handguard - 328LMF HK MP5 Surefire Lighted Handguard - 328LMF
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    HK MP5 Surefire Lighted Handguard - 328LMF

    Surefire

    $649.95
    Surefire - 328LMF - Lighted Handguard The SureFire 328LMF-B replaces the original handguard of your HK MP5, HK53, or HK94. Compact 3-volt (1-battery) system features a virtually indestructible LED emitter focused by a TIR lens, which produces a brilliant...
    $649.95
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