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 MP5 M-LOK Wide Forearm - Black - HKP-21870 HK MP5 M-LOK Wide Handguard
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    HK MP5 M-LOK Wide Handguard

    H&K Heckler & Koch

    $98.95
    H&K MP5 M-LOK Wide Forearm  Genuine HK wide forearm with the addition of M-LOK slots for a unique, functional handguard solution. This is a great option for those that want a genuine HK handguard with the versatility of M-LOK attachment...
    HKP-21870
    $98.95
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  • Used - HKP - MP5K, SP89 Receiver Flat With Weldment Set - HKP-20882
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    HK MP5K, SP89 Receiver Flat with Weldment Set

    HKP HK Parts

    $239.95
    HKP - MP5K, SP89 Receiver Flat With Weldment Set New MP5K receiver flat and weldment set combined for the best complete build option on the market. Made by the original German tool and die maker of the LSC receiver flat utilizing factory original German...
    HKP-20882
    $239.95
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    $239.95
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  • New - Zenith 30 Round HK MP5 Subsonic Labeled Magazine - HKP-20829 HK MP5 Magazine - Subsonic Labeled - 30 Round
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    HK MP5 Magazine - Subsonic Labeled - 30 Round

    Zenith

    $43.95
    Zenith 30 Round HK MP5 Subsonic Labeled Magazine Easily identify a magazine loaded with supersonic rounds versus a magazine loaded with subsonic rounds. Features: Durable electro-plated black finish for exceptional corrosion resistance All steel...
    HKP-20829
    $43.95
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    $43.95
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  • New - B&T HK USC/UMP .45 Flash Hider - 3-Lug - HKP-18346 HK USC, UMP .45 Flash Hider - 3 Lug
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    HK USC, UMP .45 Flash Hider - 3 Lug

    B&T Brugger & Thomet

    $165.00
    B&T HK USC/UMP .45 Flash Hider - 3-Lug B&T Switzerland has supplied these to law enforcement and military units around the world. Rock solid, mil-spec quality from an H&K OEM manufacturer. This flash hider slips over the end of the 3-lug...
    HKP-18346
    $165.00
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    $165.00
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  • Out Of Stock
    New - HK German Leather Sling - HKP-20485 HK German Leather Sling

    HK German Leather Sling

    H&K Heckler & Koch

    $99.95
    German HK Leather 2 point sling - New Comes with HK sling hook. Complete and new condition. Made with leather straps and steel hardware and HK sling hook. Compatible With: HK91 G3 PTR91 & CETMEHK93 33 53HK94 MP5HK clones or other custom...
    HKP-20485
    $99.95
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    $99.95
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  • New - Blitzkrieg PTR Chevron Front Sight Gen 2 - Luminescent Green - HKP-20451 PTR Chevron Front Sight - Gen 2 - Luminescent Green
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    PTR Chevron Front Sight - Gen 2 - Luminescent Green

    Blitzkrieg Components

    $56.99
    Blitzkrieg PTR Chevron Front Sight Gen 2 - Luminescent Green The Blitzkrieg Gen 2 HK-style front sight delivers a fast, bold sight picture with a sharp, precision aiming point. Designed for easy installation, it eliminates the need for tools by using a...
    HKP-20451
    $56.99
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  • New - H&K HK MR556/MR762/416/417 28mm Front Folding Sight - HKP-00026
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    HK416, MR556, HK417, MR762 Front Folding Sight - 28mm

    H&K Heckler & Koch

    $209.95
    H&K HK MR556/MR762/416/417 28mm Front Folding Sight This sight attaches directly to the front gas block of the HK416, MR556, or MR762, HK417. This sight is to be used with the proper (caliber and barrel length specific) rear fixed diopter sight for...
    HKP-00026
    $209.95
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    $209.95
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  • New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Magazine Release Spring - HKP-01899 HK UMP, USC Magazine Release Spring
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    HK UMP, USC Magazine Release Spring

    H&K Heckler & Koch

    $9.95
    HK UMP & USC Magazine Release Spring HK German factory mag release spring for all USC and UMP mag releases.  Compatible With:  USC lowers UMP lowers
    HKP-01899
    $9.95
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    $9.95
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  • New - HKP HK 91/G3 (7.62x51/.308) Fixed Stock Complete with Enhanced Heavy Buffer - Black - HKP-18937
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    HK91, G3 Fixed Stock Complete with Enhanced Heavy Buffer - Black

    HKP HK Parts

    $279.95
    New HK91, G3, PTR-91 U.S Made (PTR-91 Manufactured) Fixed Stock with Enhanced Buffer Installed Made from all German & U.S. made HK parts. This stock will fit any of the HK G3 & HK 91 & PTR rifles. This stock also counts as one U.S. compliant...
    HKP-18937
    $279.95
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  • Used - H&K 91/G3 (7.62x51/.308) Firing Pin Spring - Used - HKP-16711
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    HK91, G3 Firing Pin Spring - Used

    H&K Heckler & Koch

    $4.95
    H&K 91/G3 (7.62x51/.308) Firing Pin Spring - Used This is a common repair and replacement item. Grab one for a spare, just in case.
    HKP-16711
    $4.95
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    $4.95
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  • New - Muzzle Device Shim Kit - 1/2x28 - HKP-21455
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    Muzzle Device Shim Kit - 1/2x28

    Rugged Suppressors

    $9.95
    Rugged Suppressors Muzzle Device Shim Kit - 1/2x28 This kit includes 3 varying thickness shims to time your muzzle device to your desired orientation.  Compatible With: HK MP5/K HK 416/MR556/MR223 HK G36/SL8 B&T TP9/MP9 B&T...
    HKP-21455
    $9.95
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  • New - Strike Industries M-LOK Bikini Hand Stop - HKP-20057 MLOK Handstop Set - Bikini BHS
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    MLOK Handstop Set - Bikini BHS

    Strike Industries

    $13.95
    Bikini Hand Stop (2-pack) Strike Industries The Strike Industries Bikini Hand Stop (BHS) gives the shooter increased ergonomics and control of the weapon. The hand stop is made from durable and lightweight polymer compatible with M-LOK rails. The BHS is...
    HKP-20057
    $13.95
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