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 - Aimpoint ACRO / NANO 22mm Picatinny QD Mount - HKP-21728 Picatinny Optic Mount - Low Profile - ACRO, NANO
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    Picatinny Optic Mount - Low Profile - ACRO, NANO

    B&T Brugger & Thomet

    $115.00
    B&T Brugger and Thomet Aimpoint ACRO / NANO 22mm Low Mount The B&T ACRO NANO optic mount is a universal QD mount for any firearm featuring a Picatinny top rail.  Keep your optic profile compact with this Swiss made mount. Compatible...
    HKP-21728
    $115.00
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    $115.00
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  • New - HKP (5.56/.223) A5 Flash Hider - Threaded 1/2x28 - HKP-21342 HKP (5.56/.223) A5 Flash Hider - Threaded 1/2x28
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    HKP (5.56/.223) A5 Flash Hider - Threaded 1/2x28

    HKP HK Parts

    $59.95
    HKP (5.56/.223) HK 416C A5 Flash Hider - Threaded 1/2x28 Made from ordnance grade steel, heat treated, and melonited (nitride process) for maximum longevity. Machined correctly to reduce tuning fork noise for a more pleasant time at the range. This is...
    HKP-21342
    $59.95
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    $59.95
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  • New - HKP HK UMP & HK USC Extended Top Rail For Optics - HKP-21048 HK UMP, USC Top Rail - Extended - Optics
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    HK UMP, USC Top Rail - Extended - Optics

    HKP HK Parts

    $59.95
    HKP HK UMP & HK USC Extended Top Rail For Optics Nearly an 1" longer than the standard length top rail for mounting any Picatinny mount optic.  Made in the USA from 6061 aluminum and hard coat anodize in a beutiful black finish. 
    HKP-21048
    $59.95
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  • Out Of Stock
    New - HKP HK 416C 9" Complete Upper Receiver Assembly - HKP-21042 HK416C Upper Receiver Kit - 9"

    HK416C Upper Receiver Kit - 9"

    HKP HK Parts

    $2,799.95
    HK416C Complete Upper Kit - 9"  Our complete 416C upper kit includes everything you need to pair with a mil-spec lower or an STS 416C lower. For that genuine look, the STS 416C lower with the correct 416C stock eyelets is as good as you can get...
    HKP-21042
    $2,799.95
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  • Out Of Stock
    On Sale
    New - B&T TP9/MP9 Camo Holster - Swiss Military - HKP-20980 B&T TP9, MP9 Holster - Camo - Swiss Military

    B&T TP9, MP9 Holster - Camo - Swiss Military

    B&T Brugger & Thomet

    Now: $74.95
    Was: $125.00
    B&T TP9/MP9 Camo Holster - Swiss Military The B&T TP9 tactical leg holster is perfect for your TP9 or MP9 Pistol. This drop leg holster is fully adjustable both up and down and tightness around the leg. If you're looking for a tactical holster...
    HKP-20980
    Now: $74.95
    Was: $125.00
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  • On Sale
    New - TPM Ruger Bolt Shroud - Bronze - HKP-20905 Ruger 10/22 Bolt Shroud - Bronze
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    Ruger 10/22 Bolt Shroud - Bronze

    Tactical Precision MFG

    Now: $27.95
    Was: $66.99
    Tactical Precision MFG Ruger 10/22 Bronze Bolt Shroud  This Ruger American rifle bolt shroud is hands down the best RAR bolt shroud on the market. Each bolt shroud is made in house on a five-axis Swiss lathe to exacting tolerances out of grade 5...
    HKP-20905
    Now: $27.95
    Was: $66.99
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    Was: $66.99
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  • New - HKP MP5 9mm Titanium Flash Hider - 3-Lug - HKP-20223 HK MP5, MP5K Flash Hider - 3-Lug - Titanium - 9mm
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    HK MP5, MP5K Flash Hider - 3-Lug - Titanium - 9mm

    HKP HK Parts

    $139.95
    HKP MP5 9mm Titanium Flash Hider - 3-Lug Easily attaches to the end of any factory specification 9mm 3 lugged barrel. This flash hider does not require the of threads as it attached to the 3 lug tip. Also a great addition for any of 3 lug barrels found...
    HKP-20223
    $139.95
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    $139.95
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  • New - B&T Quick Detach Aluminum Unigrip - Black - HKP-19473 B&T Unigrip - Quick Detach - Aluminum
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    B&T Unigrip - Quick Detach - Aluminum

    B&T Brugger & Thomet

    $150.00
    B&T Quick Detach Aluminum Unigrip - Black This simple fore grip is designed to be mounted on the NAR/Picatinny rail of the gun. The grip is hollow and can be used as a storage compartment after unscrewing the bottom lid. Thanks to the QD mount, the...
    HKP-19473
    $150.00
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    $150.00
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  • New - HKP HK USC, HK UMP Cocking Handle Assembly - HKP-19155
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    HK USC, UMP Cocking Handle Assembly - Complete

    HKP HK Parts

    $149.95
    HKP Cocking Handle Assembly for HK USC, UMP Complete cocking handle assembly for HK USC and HK UMP platforms. US-made and built to factory-spec dimensions and includes all required components for proper function and replacement. Includes: Steel cocking...
    HKP-19155
    $149.95
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  • New - H&K German Ambidextrous Sling Pin Replacement O-Ring - HKP-19985
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    HK German Ambidextrous Sling Pin Replacement O-Ring

    H&K Heckler & Koch

    $5.95
    H&K German Ambidextrous Sling Pin Replacement O-Ring HK ambidextrous sling pin replacement O-ring for all ambidextrous sling pins. Brand new factory German manufacture. This item is a common wear/breakage part that does need to be replaced from time...
    HKP-19985
    $5.95
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    $5.95
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  • Out Of Stock
    New - HKP HK UMP, USC Lower Bolt Catch - HKP-19565 HK UMP, USC Lower Bolt Catch

    HK UMP, USC Lower Bolt Catch

    HKP HK Parts

    $22.95
    HK UMP & USC Bolt Catch For Last Round Hold Open New HK USA lower bolt catch. Compatible With: HK UMP HK USC
    HKP-19565
    $22.95
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    $22.95
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  • Used - Comp-Tac HK VP9SK Infidel Ultra Max RH Holster - Black - HKP-19329
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    HK VP9SK Holster - Infidel Ultra Max - RH

    Comp-Tac

    $96.95
    Infidel Ultra Max Holster - Right Hand - VP9SK The Infidel Ultra Max Holster is an Inside the Waistband Kydex and leather hybrid holster designed for concealed carry. The Infidel Ultra Max is designed with cant adjustment holes to allow the user to...
    HKP-19329
    $96.95
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    $96.95
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