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 G36/SL8 (5.56/.223) Cocking Handle - HKP-01853
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    HK G36, SL8 Cocking Handle

    H&K Heckler & Koch

    $55.95
    HK Cocking Handle For G36 & SL8 Bolt Carriers  
    HKP-01853
    $55.95
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    $55.95
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  • New - H&K UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Safety Right Side (0,1) - HKP-01874
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    HK UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Safety Right Side (0,1)

    H&K Heckler & Koch

    $9.95
    Safe, Semi 0,1 Only HK UMP, USC, G36, & SL8 Right Side Safety Control Lever Constructed from durable black polymer, this factory original part from HK is made in Germany and specifically designed for H&K SL8, G36, and USC rifle. The lever...
    HKP-01874
    $9.95
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    Qty in Cart: 0
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    $9.95
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  • Out Of Stock
    New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) 3 Position Navy Full Lower (0,1,3) - HKP-00592 HK UMP/USC (.40 S&W/.45 ACP/9mm) 3 Position Navy Full Lower (0,1,3)

    HK UMP/USC (.40 S&W/.45 ACP/9mm) 3 Position Navy Full Lower (0,1,3)

    H&K Heckler & Koch

    $1,249.95
    HK UMP 3 Position Navy Lower New German Heckler & Koch UMP 3 position (0, 1, full) Navy lower. Each lower comes complete with all the factory internals. These lowers are ideal for the USC to UMP conversion and to keep as a spare. Each lower is...
    HKP-00592
    $1,249.95
    Out Of Stock
    Qty in Cart: 0
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    $1,249.95
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  • New - H&K G3/91 (7.62x51/.308) SEF Navy Style Trigger Housing - Clipped & Pinned - HKP-00513 HK91, G3 SEF Navy Style Trigger Housing - Clipped & Pinned
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    HK91, G3 SEF Navy Style Trigger Housing - Clipped & Pinned

    H&K Heckler & Koch

    $179.95
    H&K G3/91 (7.62x51/.308) SEF Navy Style Trigger Housing - Clipped & Pinned New German-made Heckler & Koch grip housing comes in black polymer clipped and pinned, ready to drop on your HK 91, HKG3, PTR-91, or other HK .308 type build. Accepts...
    HKP-00513
    $179.95
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    $179.95
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  • Used - EBO HK G3 (7.62x51/.308) Parts Kit - Tungsten Filled Carrier - (Greek HK Contract) - HKP-17695 HK G3 Parts Kit  - Tungsten Filled Carrier - (Greek HK Contract)
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    HK G3 Parts Kit - Tungsten Filled Carrier - (Greek HK Contract)

    EBO

    $389.95
    HK Contract Greek EBO G3 .308/7.62 X 51mm Surplus Parts Kit Rare and HK Greek EBO Surplus G3 parts kits with the Tungsten filled bolt carriers. Each demilled parts kit comes with all parts from a functional HK G3 full auto rifle except the barrel and...
    HKP-17695
    $389.95
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    $389.95
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  • On Sale
    New - GG&G Picatinny to Harris Bipod Adapter - HKP-02307 Harris Bipod Adapter - Picatinny
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    Harris Bipod Adapter - Picatinny

    GG&G

    Now: $14.95
    Was: $39.95
    Harris Bipod Adapter Made By GG&G Enables a Harris Bi-pod to attach to a mil-spec Picatinny rail. GG&G's AR-15 Harris Bipod Adapter is rugged and low profile. Features of the GG&G Bipod Adapter include a stationary standard swivel stud, a...
    HKP-02307
    Now: $14.95
    Was: $39.95
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    Now: $14.95
    Was: $39.95
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  • New - H&K HK MR556/MR762/416/417 Flip Up Rear Sight - 2mm - FDE - HKP-18500 H&K HK MR556/MR762/416/417 Flip Up Rear Sight - 2mm - FDE H&K Heckler & Koch HKP-18500
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    HK416, MR556, HK417, MR762 Rear Sight - Flip Up 2mm - RAL8000

    H&K Heckler & Koch

    $446.95
    Heckler and Koch HK416, MR556 Flip Up 2mm Rear Sight - RAL8000 Factory HK quick change, flip up rear sight in RAL 8K with a 2mm aperture. Attaches directly to any standard Picatinny rail using a self-contained quick-attach push button system. Designed...
    HKP-18500
    $446.95
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    $446.95
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  • On Sale
    HK G3 Standard Stock Buttpad - Black - Used - BLEMISHED H&K Heckler & Koch HKP-21865-BL-B HK G3 Standard Stock Buttpad - Black - Used - BLEMISHED H&K Heckler & Koch HKP-21865-BL-B
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    HK G3 Buttpad with Catch Spring - Standard Stock - Black - Used - BLEMISHED

    H&K Heckler & Koch

    Now: $0.97
    Was: $2.95
    HK G3 Standard Stock Buttpad - Black - Used - BLEMISHED SOLD INDIVIDUALLY - CRACKED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. This German-made buttpad is an excellent replacement for your...
    HKP-21865-BL-B
    Now: $0.97
    Was: $2.95
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    Now: $0.97
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  • On Sale
    New - MKE HK MP5 Recoil Spring - HKP-22239 MKE HK MP5 Recoil Spring MKE HKP-22239
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    HK MP5 Recoil Spring

    MKE

    Now: $8.45
    Was: $10.99
    MKE HK MP5 Recoil Spring Great replacement and spare recoil spring as this is a common repair and replacement item. Compatible With: HK MP5 Century Arms AP5 Clones & custom builds
    HKP-22239
    Now: $8.45
    Was: $10.99
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    Now: $8.45
    Was: $10.99
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  • New - Streamlight HK MR556/HK416 Protac 2.0 Rail Mount - HKP-21939 Picatinny, MLOK Optic Mount - Protac 2.0
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    Picatinny, MLOK Optic Mount - Protac 2.0

    Streamlight

    $169.99
    Streamlight HK MR556/HK416 Protac 2.0 Rail Mount The Streamlight ProTac 2.0 Rail Mount HP is a high-performance rail-mounted tactical light designed for long-gun applications. Producing 2,000 lumens and 100,000 candela, it delivers intense, far-reaching...
    HKP-21939
    $169.99
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    $169.99
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  • New - MKE Century Arms AP51 A3 Retractable Stock - HKP-21926 Century Arms AP51 Retractable Stock - A3
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    Century Arms AP51 Retractable Stock - A3

    MKE

    $449.95
    MKE Century Arms AP51 A3 Retractable Stock Factory new MKE stock professionally converted to fit the AP51 rifles and pistols. This AP51 stock was modified to the correct length recoil rod to make it a true drop in stock. Only offered here at HK Parts...
    HKP-21926
    $449.95
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    $449.95
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  • New - B&T 1/2x28 to Tri-lug Adapter for 9mm - HKP-21752 Tri-Lug Adapter - 1/2x28 RH to Tri-Lug - 9mm - B&T
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    Tri-Lug Adapter - 1/2x28 RH to Tri-Lug - 9mm - B&T

    B&T Brugger & Thomet

    $125.00
    B&T 1/2x28 to Tri-Lug Adapter for 9mm Convert any 1/2x28 RH 9mm threaded barrel to the HK spec. tri-lug with B&T's Swiss-made adapter adapter threaded 1/2x28. Compatible With the Following 9mm Firearms: HK MP5, MP5K, SP5, SP5K HK UMP...
    HKP-21752
    $125.00
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    $125.00
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