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 - MKE HK MP5/AP5 Handguard - HKP-21810 HK MP5, AP5 Handguard
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    HK MP5, AP5 Handguard

    MKE

    $39.95
    MKE HK MP5 AP5 Handguard The AP5 handguard is designed to fit the MKE AP5 and HK MP5 firearms. This handguard provides a secure grip and a factory-correct appearance. It provides a reliable and durable option for replacing or upgrading an MP5-style...
    HKP-21810
    $39.95
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  • New - Botach Battle Steel HK MP5 Ultra-Low-Profile Mount for Trijicon MRO - HKP-19530 HK MP5 Mount - Trijicon MRO - Ultra Low Profile - Battle Steel
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    HK MP5 Mount - Trijicon MRO - Ultra Low Profile - Battle Steel

    Botach Tactical

    $69.95
    Botach Battle Steel HK Ultra-Low Profile Integrated Mounting Platforms for the Trijicon MRO Ultra-low-profile mount for HK MP5/HK33/HK53 firearms.  Features a lower 1/3 cowitness for the Trijicon MRO sights.   Compatible With: HK MP5 &...
    HKP-19530
    $69.95
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  • New - GSG9 HK UMP Folding Stock - Black - HKP-19910 New - GSG9 HK UMP Folding Stock - Black - HKP-19910
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    HK UMP Folding Stock

    HKP HK Parts

    $119.95
    Folding Buttstock - GSG9 New UMP folding stock. This is a required part for the USC-UMP Conversion using the stock block B. Compatible With: UMP9 UMP40 UMP45 HK USC-UMP conversions Can also be used on B&T firearm and stock applications for a 1"...
    HKP-19910
    $119.95
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  • New - MI HK MP5K, HK SP89 Top Rail - Black - HKP-19113 HK MP5K, HK SP89 Top Rail
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    HK MP5K, HK SP89 Top Rail

    MI Midwest Industries

    $129.95
    MI HK MP5K, HK SP89 Top Rail Midwest Industries picatinny and M-lok top rail for MP5, HK94 style weapons and clones. An amazing profile option for your MP5 style weapon. Offers a combination of strength, adaptability and extreme lightweight features...
    HKP-19113
    $129.95
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  • Pistol Stabilizing Brace - SBA4 Pistol Stabilizing Brace - SBA4
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    Pistol Stabilizing Brace - SBA4

    SB Tactical

    $124.99
    SB Tactical SBA4 Pistol Stabilizing Brace Designed for all platforms capable of accepting a mil-spec carbine receiver extension.  The SBA4 is 5-position adjustable and features an integral, ambidextrous QD sling socket. Compatible With: HK MR556...
    HKP-19927
    $124.99
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  • New - H&K HK MR556/416 10.5" Rear Diopter Sight Assembly - HKP-01109
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    HK416, MR556 Rear Diopter Sight Assembly - 10.5"

    H&K Heckler & Koch

    $188.95
    H&K HK MR556/416 10.5" Rear Diopter Sight Assembly This is the proper rear sight for use on all HK 416 10.5 uppers and firearms. This is also a great sight alternative for those who need a lower sight setup for the AR, XCR, etc. To be used in...
    HKP-01109
    $188.95
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  • New - AIM HK 91/G3 (7.62x51/.308) Extended Rifle Length Handguard - M-LOK - HKP-18173 HK91, G3 Extended Rifle Length Handguard - M-LOK
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    HK91, G3 Extended Rifle Length Handguard - M-LOK

    AIM

    $129.95
    HK G3 EXTENDED RIFLE LENGTH HANDGUARD- M-LOK The most innovative and modular HK variant handguard on the market, our M-LOK HK forend can be used with all modern and traditional shooting techniques. CNC machined aluminum construction makes for a solid,...
    HKP-18173
    $129.95
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  • New - HKP 91/93/33/G3 (7.62x51/.308) Enhanced HK Buffer For HK German MSG90 & PSG1 - HKP-01014 HK91, G3, HK93, HK33, PTR Buffer - Enhanced
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    HK91, G3, HK93, HK33, PTR Buffer - Enhanced

    HKP HK Parts

    $129.95
    HKP Enhanced Buffer This buffer is the factory correct style PSG1 & MSG90 stock buffer found in all factory HK PSG1, MSG90 German stocks. The overall diameter is .80" Compatible With: HK 91 G3, 93, 33, or PTR stock.
    HKP-01014
    $129.95
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  • New - PTR MP5 Tri-Rail Forearm - HKP-17782
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    HK MP5 Tri-Rail Handguard

    PTR

    $149.95
    PTR MP5 Tri-Rail Forearm US made and comes with 3 independent 4" removable rails that are fully modular and able to add and remove at will. Made in the USA. Low profile and the most modular of any picatinny style forearm available. The Picatinny Rails...
    HKP-17782
    $149.95
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  • New - H&K Roller Sear For SEF, Navy Trigger Packs - HKP-01710 HK Roller Sear For SEF, Navy Trigger Packs
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    HK Roller Sear For SEF, Navy Trigger Packs

    H&K Heckler & Koch

    $29.95
    H&K Roller Sear For SEF & Navy Trigger Packs It is the newer style, not the older friction type of sear. This item is also referred to as the catch with a roller but is more commonly called a sear.
    HKP-01710
    $29.95
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  • HK416 A5, MR556 A4 Gas Vent Screws - 1.0-2.5mm
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    HK416 A5, MR556 A4 Gas Vent Screws - 1.0-2.5mm

    H&K Heckler & Koch

    $31.99
    H&K MR556 A4 and HK416 A5 Gas Vent Screws German gas vent screw for MR556 A4 gas block. Specifications: Factory reference: 1.3mm is the common factory vent screw size for MR556 A4 Sizing reminder: Larger mm equals more venting, Smaller mm equals...
    HKP-22470-M
    $31.99
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