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
    Used - G36 Handguard HK German Original Style - Gray - Incomplete - Used - HKP-19773 G36 Handguard HK German Original Style - Gray - Incomplete - Used
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    G36 Handguard HK German Original Style - Gray - Incomplete - Used

    Now: $24.95
    Was: $49.95
    G36 Handguard HK German Original Style - Gray - Incomplete - Used
    HKP-19773
    Now: $24.95
    Was: $49.95
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    Now: $24.95
    Was: $49.95
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  • Used - Franklin Armory HK MP5 .40/10 BFSIII HK-C1 Franklin Binary SEF Navy Style Trigger Group - HKP-19663 HK MP5 Binary Trigger Group - SEF Navy - BFSIII - 10mm and .40 S&W
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    HK MP5 Binary Trigger Group - SEF Navy - BFSIII - 10mm and .40 S&W

    FA Franklin Armory

    $879.95
    Franklin Armory HK MP5 .40/10 BFSIII HK-C1 Franklin Binary SEF Navy Style Trigger Group 3 Position HK binary trigger group for the MP5 .40 and 10mm firearms.  The BFSIII is ideal for tactical and competition use. The BFSIII provides greatly reduced...
    HKP-19663
    $879.95
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    $879.95
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  • New - H&K HK MR762/417 14.7" Modular Rail System - Black - HKP-17343 HK417, MR762 14.7" Modular Rail System
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    HK417, MR762 14.7" Modular Rail System

    H&K Heckler & Koch

    $479.95
    HK MR762, CR762 & HK 417 14.7" Extended Modular Rail System (MRS) - Rare New HK German modular rail system for the HK MR762. Each unit comes with 2 X 5 slot rails attached on the HKey attachment system as well as all hardware for attachment. This is...
    HKP-17343
    $479.95
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    $479.95
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  • On Sale
    New - HKP HK 416/MR556 7" M-LOK Quad Rail - Black - HKP-17986
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    HK416, MR556 Quad Rail - 7" - M-LOK

    HKP HK Parts

    Now: $127.95
    Was: $199.95
    HKP 7" M-LOK Quad Rail   Compatible With: HK 416 HK MR556  
    HKP-17986
    Now: $127.95
    Was: $199.95
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    Now: $127.95
    Was: $199.95
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  • Out Of Stock
    New - HKP HK MR556/416 Rear Sight Drum 10" Barrel Length - HKP-17774 HK416, MR556 Rear Sight Drum for 10" Barrels

    HK416, MR556 Rear Sight Drum for 10" Barrels

    HKP HK Parts

    $29.95
    HKP HK MR556/416 Rear Sight Drum 10" Barrel Length Made in the USA.
    HKP-17774
    $29.95
    Out Of Stock
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    $29.95
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  • New - H&K SL8 (5.56/.223) Catch - HKP-16349 HK SL8 (5.56/.223) Catch
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    HK SL8 (5.56/.223) Catch

    H&K Heckler & Koch

    $7.95
    H&K SL8 (5.56/.223) Catch
    HKP-16349
    $7.95
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    $7.95
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  • New - B&T HK G36/SL8 (5.56/.223) Extended Mounting Rail - HKP-16874 HK G36, SL8 Optic Mount with Emergency Sights
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    HK G36, SL8 Optic Mount with Emergency Sights

    B&T Brugger & Thomet

    $296.95
    B&T Long Mounting Rail NAR for HK G36/G36K, with Emergency Sight Specifications: Color: Black Height max: 41.5 mm Length max: 483.2 mm Length of top rail: 306 mm + 113 mm Material: Aluminum & steel NATO Accessory Rails: 2 Part number:...
    HKP-16874
    $296.95
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    $296.95
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  • New - H&K G36 (5.56/.223) 10 Round Factory Magazine - FDE - HKP-18727 HK G36 (5.56/.223) 10 Round Factory Magazine - FDE
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    HK G36 (5.56/.223) 10 Round Factory Magazine - FDE

    H&K Heckler & Koch

    $87.95
    HK G36 10 Round Magazine in Flat Dark Earth (FDE) Compatible With: G36 G36K G36C Double Stack Capacity Magwell Converted SL8's   Specifications: Capacity: 10-rounds Condition: New, rare find Manufacturer: HK Germany
    HKP-18727
    $87.95
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    $87.95
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  • Out Of Stock
    New - HK UMP (9mm) Extractor - HKP-02625

    HK UMP Extractor - 9mm

    USA

    $39.95
    New US-Made USC & UMP 9mm Extractor: This is the perfect spare part for your UMP or USC 9mm conversion.  Please Note: HK considers this a high wear and replacement item. Once it's removed from the carrier, the spring tension...
    HKP-02625
    $39.95
    Out Of Stock
    Qty in Cart: 0
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  • New - H&K UMP (.40 S&W) Magazine Follower - HKP-01901
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    HK UMP Magazine Follower - .40 S&W

    H&K Heckler & Koch

    $9.95
    HK UMP 30 Round Magzine Follower .40 S&W
    HKP-01901
    $9.95
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    $9.95
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  • New - HK UMP/USC/SL8/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Fixed Rear Sight Flat Spring - HKP-16635
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    HK UMP, USC, SL8, G36 Fixed Rear Sight Flat Spring

    H&K Heckler & Koch

    $8.95
    HK G36, SL8 & USC, UMP Fixed Rear Sight Flat Spring Compatible With: G36 SL8 USC. 45 UMP 9mm UMP .40 UMP .45
    HKP-16635
    $8.95
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    $8.95
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  • New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Hammer Spring - Right - HKP-01892
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    HK UMP, USC Hammer Spring - Right

    H&K Heckler & Koch

    $14.95
    HK UMP & USC Right Side Hammer Spring For Lowers
    HKP-01892
    $14.95
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    $14.95
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