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 - HKP MP5 & HK94 Vertical K Grip Adapter - HKP-00175 HK MP5, HK94 Grip Adapter - K Style
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    HK MP5, HK94 Grip Adapter - K Style

    HKP HK Parts

    $49.95
    HK Vertical K Grip Adapter For HK MP5 & HK94 (Adapter Only) This is the adapter needed to add an MP5K K grip to your HK94, MP5, or clone.
    HKP-00175
    $49.95
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    $49.95
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  • New - MKE HK33/53/93 A3 Telescopic Buttstock - OD Green - HKP-21181 HK33, HK53, HK93 A3 Telescopic Stock - OD Green
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    HK33, HK53, HK93 A3 Telescopic Stock - OD Green

    MKE

    $259.95
    MKE Telescopic Stock in OD GREEN for HK33, HK53, HK93  The MKE telescopic HK33 stock is an easy-to-install telescopic stock system designed to deliver superior comfort and reliable weapon control. The simple lock/release system is easy to operate,...
    HKP-21181
    $259.95
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    $259.95
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  • New - Franklin Armory / HKP HK MP5K Binary Trigger Group – 2 Round Engraved Binary Housing - HKP-21114-M HK MP5K Binary Trigger Group – 2 Round Engraved Binary Housing
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    HK MP5K Binary Trigger Group – 2 Round Engraved Binary Housing

    HKP HK Parts / FA Franklin Armory

    $1,449.95 - $1,499.95
    Franklin Armory / HKP HK MP5K Binary Trigger Group – 2 Round Engraved Binary Housing Our latest and greatest binary trigger group was delivered with a factory HK German housing professionally engraved and painted with a 2-round burst pictograph to...
    HKP-21114-M
    $1,449.95 - $1,499.95
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    $1,449.95 - $1,499.95
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  • New - HK UMP .45 ACP Barrel - Threaded .578x28 - HKP-20872 HK UMP Barrel - .45 ACP - 7.87" - Threaded .578x28
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    HK UMP Barrel - .45 ACP - 7.87" - Threaded .578x28

    HDPS

    $349.95
    HK UMP .45 ACP Barrel - Threaded .578x28 HDPS UMP barrels are perfect for the USC to UMP conversions and for a replacement UMP .45 ACP barrel. They are considered by many to be the finest US-made barrel available. This barrel is the same length as a...
    HKP-20872
    $349.95
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    $349.95
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  • New - MP5 Brush Combo - All Calibers - HKP-16680 HK MP5 Cleaning Brush Combo
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    HK MP5 Cleaning Brush Combo

    HKP HK Parts / Heckler & Koch

    $44.95
    HK German/USA Brush Set Combo All the HK custom brushes you will need to clean your barrel, chamber, chamber face, receiver, magwell, and magazines. These are the brushes you will need to properly clean and maintain your MP5. This will work with all MP5...
    HKP-16680
    $44.95
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    $44.95
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  • New - Nefarious Arms - NAS HK 416 Adjustable Gas Block - HKP-21040 HK416, MR556 Adjustable Gas Block - 11-20" A1 Barrels - NA5
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    HK416, MR556 Adjustable Gas Block - 11-20" A1 Barrels - NA5

    Nefarious Arms

    $374.95
    Nefarious Arms - NA5 HK 416 Adjustable Gas Block Nefarious Arm user configurable 2-position adjustable gas block compatible with 11″ – 20″ A1 MR556 and HK416 barrels.  Each gas block ships with 6 vent screws, a screwdriver,...
    HKP-21040
    $374.95
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    $374.95
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  • New - Angstadt Arms 3-Lug Quick Detach 9mm Blast Shield - HKP-19983 Blast Shield - 9mm - Quick Detach with 3 Lug
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    Blast Shield - 9mm - Quick Detach with 3 Lug

    Angstadt Arms

    $99.95
    Angstadt Arms, Blastwave, Blast Diverter, 9MM, 3 Lug Attachment Ideal for close quarters environments or shooting in teams, the Blastwave 3-Lug 9mm QD Blast Shield reduces concussive forces on the shooter and those nearby by redirecting the blast...
    HKP-19983
    $99.95
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    $99.95
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  • Out Of Stock
    New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Ejector Lever - HKP-00263 HK UMP, USC Ejector Lever

    HK UMP, USC Ejector Lever

    H&K Heckler & Koch

    $39.95
    HK German UMP & USC Ejector Lever - German New HK German OEM part. Each unit fits all calibers of UMP & USC firearms. A great spare to have on hand as they are prone to shearing off with use and must be replaced. Compatible With: UMP .45 UMP ...
    HKP-00263
    $39.95
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  • HK416/MR556 Adaptive Pistol Grip with Storage - Black H&K Heckler & Koch HKP-22298 HK416/MR556 Adaptive Battle Grip with Storage - Black H&K Heckler & Koch HKP-22298
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    HK416, MR556, HK417, MR762 Pistol Grip

    H&K Heckler & Koch

    $89.99
    HK Heckler and Koch's Pistol Grip with Storage - Black HK German factory pistol grip with a storage compartment in the bottom. It has a superior fit and feel to any other grip on the market. This is a great upgrade for any AR, M16 platform. Compatible...
    HKP-22298
    $89.99
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    $89.99
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  • New - H&K MR556/MR762 A4 Safety Lever - Right - HKP-21966 HK MR556, MR762 A4 Safety Lever - Right
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    HK MR556, MR762 A4 Safety Lever - Right

    H&K Heckler & Koch

    $13.95
    H&K MR556/MR762 A4 Safety Lever - Right H&K factory right-side selector lever for MR-series ambidextrous safety systems.  Compatible With: HK MR762 A1/A4 HK MR556 A1/A4
    HKP-21966
    $13.95
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    $13.95
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  • New - HKP .45 ACP Vertical Slot Micro Comp - Threaded .578x28 RH - HKP-21635 HKP .45 ACP Vertical Slot Micro Comp - Threaded .578x28 RH
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    HKP .45 ACP Vertical Slot Micro Comp - Threaded .578x28 RH

    HKP HK Parts

    $29.95
    HKP .45 ACP Vertical Slot Micro Comp - Threaded .578x28 RH The HK Parts micro comp & thread protector strikes a balance between a lightweight, minimalistic design and range functionality. The micro comp easily threads on to the end of any factory...
    HKP-21635
    $29.95
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    $29.95
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  • Used - H&K MP5K/SP5K SEF Universal Housings - Clipped & Pinned - USED - HKP-21352 HK MP5K, SP5K Trigger Housing - Universal SEF - Clipped and Pinned - USED
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    HK MP5K, SP5K Trigger Housing - Universal SEF - Clipped and Pinned - USED

    H&K Heckler & Koch

    $99.95
    H&K Heckler and Koch SEF Universal Housing Clipped and Pinned - USED for HK MP5K HK SP5K Finally, a solution everyone was looking for. A one size fits all approach for the MP5K and SP5K style semi-auto shelf. You can easily swap the lower trigger...
    HKP-21352
    $99.95
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    $99.95
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