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 - Magpul M-LOK 9 Slot Rail Section - HKP-19570 M-LOK Rail Section - 9 Slot
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    M-LOK Rail Section - 9 Slot

    Magpul

    $24.95
    Magpul M-LOK 9 Slot Rail Section Designed for use with all M-LOK compatible Hand Guards and Forends, M-LOK Aluminum Rail Sections allow the attachment of various 1913 Picatinny spec rail-mounted accessories such as lights, vertical grips, etc. Machined...
    HKP-19570
    $24.95
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  • New - H&K UMP (.40 S&W/.45 ACP/9mm) Paddle Mag Release - HKP-00810
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    HK UMP Paddle Magazine Release

    H&K Heckler & Koch

    $16.95
    Heckler and Koch Paddle Magazine Release for HK UMP This is a common repair and replacement part as they are easy to break on the UMP lower. Simple and easy to install with no gunsmith needed or required. Compatible With:  UMP Please...
    HKP-00810
    $16.95
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    $16.95
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  • New - HKP AR Brace/Stock Adapter To HK 90 Series Firearms - HKP-16550 HK MP5, HK90 Series AR Stock or Brace Adapter
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    HK MP5, HK90 Series AR Stock or Brace Adapter

    HKP HK Parts

    $99.95
    HKP AR Brace/Stock Adapter To HK 90 Series Firearms For use on any commercial, mil-spec, or pistol AR15/M16/M4 stock, brace, & buffer tube of your choice. Perfect for your HK rifle, pistol, or SBR build. With our M4 adapter, you can use your existing...
    HKP-16550
    $99.95
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    $99.95
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  • New - H&K G3,91,PTR, 93,33 & MP5, 94 Hammer Strut - HKP-15445 HK MP5, HK90 Series Hammer Strut
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    HK MP5, HK90 Series Hammer Strut

    H&K Heckler & Koch

    $9.95
    H&K G3,91,PTR, 93,33 & MP5, 94 Hammer Strut New HK German Hammer Strut for 90 series rifles and pistols. A perfect spare to have on hand. This is a non-pinned hammer spring shank. Perfect for your HK project or rebuild. Compatible With: The...
    HKP-15445
    $9.95
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  • Out Of Stock
    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

    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:...
    HKP-16873
    $199.95
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  • New - RCM MP5K/SP89 9mm Locking Piece - 110 Degree - HKP-01465 HK MP5K, SP89 Locking Piece - 110 Degree - 9mm
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    HK MP5K, SP89 Locking Piece - 110 Degree - 9mm

    RCM

    $33.95
    MP5K, SP89 Locking Piece - 110 Degree - RCM US-Made Locking Piece. Made from ordnance grade steel, heat treated, and made to last by RCM. HK no longer makes the 110-degree locking piece as they use the 100-degree locking piece in all 9mm MP5 and MP5K...
    HKP-01465
    $33.95
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    $33.95
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  • New - B&T MP5, HK53 Tri-Rail Handguard - HKP-16885 HK MP5, HK53 Handguard - Tri-Rail
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    HK MP5, HK53 Handguard - Tri-Rail

    B&T Brugger & Thomet

    $275.00
    B&T MP5, HK53 Tri-Rail Handguard The B&T handguard 3x NAR is a modular forend system designed for the HK MP5 submachine gun. It offers a versatile and customizable mounting platform for various accessories such as lights, lasers, and grips. The...
    HKP-16885
    $275.00
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    $275.00
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  • Used - H&K HK G3, HK 91, PTR Wood Stock - HKP-19275 HK91, G3, PTR Wood Buttstock
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    HK91, G3, PTR Wood Buttstock

    H&K Heckler & Koch

    $199.95
    Wood Stock - Used - Excellent Shape - HK G3, 91, PTR Complete rear stock for HK91/G3, PTR. These stock sets were in use with the German military and come used in varying degrees of condition ranging from very good to excellent shape overall.  A rare...
    HKP-19275
    $199.95
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  • New - SB Tactical HK UMP & B&T APC Folding Brace - Black - HKP-18258 HK UMP, B&T APC Folding Brace
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    HK UMP, B&T APC Folding Brace

    SB Tactical

    $79.95
    SB Tactical Folding Brace for HK UMP, Omega, and B&T APC SB tactical folding brace for the HK UMP, Omega UMP, and B&T APC platforms. Compatible With: HK UMP HK UMP, USC Conversions Omega Gideon Shadow B&T APC9, APC10, APC45...
    HKP-18258
    $79.95
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    $79.95
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  • New - HKP MP5K Enhanced SD Shroud - HKP-00849 HK MP5KSD, SP89 Barrel Shroud - Enhanced
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    HK MP5KSD, SP89 Barrel Shroud - Enhanced

    HKP HK Parts

    $119.95
    HK Parts MP5K SD Barrel Shroud For SP89 and MP5K Conversion Our MP5K SD shroud is a the best option for those who want to build a custom MP5K SD model. Made in the USA.
    HKP-00849
    $119.95
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  • New - H&K Selector Catch Lever Spring For Ambidextrous Trigger Packs - HKP-17328
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    HK Selector Catch Lever Spring - Ambi Trigger Packs

    H&K Heckler & Koch

    $12.95
    HK German Ambidextrous Trigger Pack Axle Spring For Catch Lever This is the spring that powers the ambi lever that allows you to take apart any of the ambidextrous trigger packs. This lever spring takes the spring tension off of the left and right side...
    HKP-17328
    $12.95
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    $12.95
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  • New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Side or Bottom Rail - HKP-00597 HK UMP, USC Handguard Rail - Side or Bottom
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    HK UMP, USC Handguard Rail - Side or Bottom

    H&K Heckler & Koch

    $67.95
    HK Heckler and Koch Factory German Side or Bottom Rail with Screws HK USC and HK UMP Up to three sides can be used - two for the sides and one for the bottom. Best quality and price available anywhere. Made from hard coat anodized aluminum. Please Note:...
    HKP-00597
    $67.95
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    $67.95
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