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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  • On Sale
    New - HKP (5.56/.223) Compensator Flash Hider - Threaded 1/2x28 - HKP-18468 HK416, MR556 Flash Hider - Threaded 1/2x28
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    HK416, MR556 Flash Hider - Threaded 1/2x28

    HKP HK Parts

    Now: $23.95
    Was: $39.95
    HKP (.556/.223) Compensator Flash Hider - Threaded 1/2x28 Threaded in 1/2x28, this compensator is compatible with HK 416, MR556, and other AR-style applications. The blitz compensator is renowned for its effectiveness, offering a significant upgrade over...
    HKP-18468
    Now: $23.95
    Was: $39.95
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    Now: $23.95
    Was: $39.95
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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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  • 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
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    $1,249.95
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  • New - H&K UMP (.40 S&W/.45 ACP/9mm) Firing Pin Retainer Pin - HKP-01894
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    HK UMP Firing Pin Retainer Pin

    H&K Heckler & Koch

    $7.95
    HK UMP Firing Pin - Retainter Pin   This is the pin that trips the trip lever on the UMP lower.   Compatible With: HK UMP  
    HKP-01894
    $7.95
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    $7.95
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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
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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
    MKE AP5/MP5 Front Sight Tower Complete MKE HKP-22256 MKE AP5/MP5 Front Sight Tower Complete MKE HKP-22256
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    HK MP5, AP5 Front Sight Tower Complete

    MKE

    Now: $42.95
    Was: $54.95
    MKE AP5, MP5 Front Sight Tower Complete The front sight tower is a critical component for a perfect build. The MKE front sight tower is great option for new builds or replacement of damaged units. Compatible With: Century Arms AP5 Century Arms...
    HKP-22256
    Now: $42.95
    Was: $54.95
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  • Out Of Stock
    New - DTAC HK MP5SD Front End Kit - HKP-21318 New - DTAC HK MP5SD Front End Kit - HKP-21318

    HK MP5 to MP5SD Front End Conversion Kit

    DTAC Dakota Tactical

    $1,299.95
    Dakota Tactical HK MP5SD Front End Kit If you have wanted to convert that MP5 or SP5 to an SD but didn't know where to start, look no further.  Our kit provides all necessary components (aside from suppressor) to do so. With a DTAC Cage and SD guard...
    HKP-21318
    $1,299.95
    Out Of Stock
    Qty in Cart: 0
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    $1,299.95
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  • Used - G3 Incomplete Backplate - Threaded - HKP-20860 HK91, G3 Backplate - Incomplete
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    HK91, G3 Backplate - Incomplete

    H&K Heckler & Koch

    $29.95
    G3 Incomplete Backplate Each backplate is refinished and parkerized as issued to the German military. This refinished backplate comes with a threaded end to accept a threaded recoil rod stop screw. With a quick and easy removable recoil rod stop you will...
    HKP-20860
    $29.95
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    $29.95
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  • New - B&T HK 416, HK MR223 M-LOK Handguard for (11") - Coyote Tan - HKP-20400 HK416, HK MR223 M-LOK Handguard for (11") - Coyote Tan
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    HK416, HK MR223 M-LOK Handguard for (11") - Coyote Tan

    B&T Brugger & Thomet

    $279.95
    B&T M-LOK Handguard for HK416/MR223 (11") - Coyote Tan B&T's one-piece 10-inch MLOK handguard for the Heckler & Koch HK416 and civilian equivalent MR223 is an amazing improvement for the combat value of these rifles. A direct replacement for...
    HKP-20400
    $279.95
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    $279.95
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