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 416 (5.56/.223) German Flash Hider - 1/2x28 - HKP-18521 H&K 416 (5.56/.223) German Flash Hider - 1/2x28 H&K Heckler & Koch HKP-18521
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    HK416 A5 Flash Hider - Threaded 1/2x28

    H&K Heckler & Koch

    $95.95
    HK Heckler and Koch German Flash Hider threaded 1/2x28 for HK416 5.56 / .223 This flash hider is not compatible with suppressors. Compatible With: HK416 A5- 11" HK416 A5- 14.5" HK416 A5 - 16.5" HK416 A5- 20"
    HKP-18521
    $95.95
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    $95.95
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  • Out Of Stock
    New - H&K 416 Folding Front Sight - Complete - HKP-22022 HK416 Folding Front Sight - Complete

    HK416 Folding Front Sight - Complete

    H&K Heckler & Koch

    $187.95
    H&K 416 Folding Front Sight - Complete Factory H&K folding front sight for the HK416 with a 33mm sighting line. Compatible With: HK MR556 HK416    
    HKP-22022
    $187.95
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    $187.95
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  • On Sale
    New - HKP MP5, HK94 & MP5K 100 Degree Locking Piece - Gunsmith Special - BLEMISHED - HKP-18049-B
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    HK MP5, MP5K Locking Piece - 100 Degree - Gunsmith Special - BLEMISHED

    HKP HK Parts

    Now: $9.95
    Was: $33.95
    HKP MP5, HK94 & MP5K 100 Degree Locking Piece - Gunsmith Special - BLEMISHED   GUNSMITH SPECIAL.  THESE UNITS WILL NEED RE-WORK BEFORE USE. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL.   Please Note: Will...
    HKP-18049-B
    Now: $9.95
    Was: $33.95
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    Now: $9.95
    Was: $33.95
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  • On Sale
    New - Case of 55 Turkish Contract 30 Round MP5 Magazine - HKP-21889 HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Turkish Contract - Seconds - Case of 55
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    HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Turkish Contract - Seconds - Case of 55

    Now: $1,096.95
    Was: $1,482.25
    55 Count Case of Turkish Contract 30 Round MP5 Magazine These Turkish military contract 30 round MP5 magazines are leftover "seconds" that HKP recently imported directly from Turkey.  The magazines were manufactured by a Turkish contractor similar...
    HKP-21889
    Now: $1,096.95
    Was: $1,482.25
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    Now: $1,096.95
    Was: $1,482.25
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  • Out Of Stock
    New - Aimpoint ACRO / NANO 22mm Picatinny QD Mount - HKP-21728 Picatinny Optic Mount - Low Profile - ACRO, NANO

    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 - Nefarious Arms HK 416/MR556 11" A3 Barrel - HKP-21619 HK416, MR556 Barrel - 5.56 - 11" - Threaded 1/2"x28 - A3
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    HK416, MR556 Barrel - 5.56 - 11" - Threaded 1/2"x28 - A3

    Nefarious Arms

    $594.95
    Nefarious Arms HK 416/MR556 11" A3 Barrel ***THE BARREL EXTENSION RIM IS MARKED "HAUS" DUE TO AN ERROR BY THE BARREL EXTENSION SUPPLIER.  THE MARKING IS NOT VISIBLE ONCE INSTALLED.  THESE BARRELS ARE GENUINE NEFARIOUS BARRELS AS NEFARIOUS WILL...
    HKP-21619
    $594.95
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    $594.95
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  • On Sale
    New - HKP HK MP7 Dual Magazine Clamp - HKP-21597-M HK MP7 Dual Magazine Clamp
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    HK MP7 Dual Magazine Clamp

    HKP HK Parts

    Now: $39.96
    Was: $49.95
    HKP HK MP7 Dual Magazine Clamp Our MP7 dual mag clamp was designed for quick mag swaps at the range or in the real world.  The clamp works with any capacity MP7 magazine. Compatible With: HK MP7
    HKP-21597-M
    Now: $39.96
    Was: $49.95
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  • New - HKP (5.56/.223) A5 Flash Hider - Threaded 1/2x28 - HKP-21342 HK416, MR556, G36 A5 Flash Hider - Threaded 1/2x28
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    HK416, MR556, G36 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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  • New - USA HK UMP Left Hammer Spring - HKP-20840 HK UMP Hammer Spring - Left
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    HK UMP Hammer Spring - Left

    USA

    $9.95
    USA HK UMP Left Hammer Spring New U.S hammer spring- left side A high wear item that needs to be changed when light firing pin strikes develop on your USC or UMP firearm. Compatible With:  HK UMP models 45, .40 & 9mm USC .45 and other...
    HKP-20840
    $9.95
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    $9.95
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  • New - HKP HK MP5K/SP89 9mm Flat Receiver - HKP-20733 HK MP5K, SP89 Flat Receiver - 9mm
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    HK MP5K, SP89 Flat Receiver - 9mm

    HKP HK Parts

    $199.95
    MP5K, SP89 Receiver Flat - 9mm New MP5K receiver flat made by the original German tool and die maker of the LSC receiver flat utilizing factory original German prints and specifications. The creator of our receiver flat has been regarded as the premier...
    HKP-20733
    $199.95
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    $199.95
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  • New - SB Tactical HK MP5K SBA4 Pistol Stabilizing Brace & Adapter - HKP-19930 HK MP5K Pistol Stabilizing Brace - SBA4 - Adapter Included
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    HK MP5K Pistol Stabilizing Brace - SBA4 - Adapter Included

    SB Tactical

    $294.95
    SB Tactical HK MP5K SBA4 Pistol Stabilizing Brace & Adapter Designed for all platforms capable of accepting a mil-spec carbine receiver extension, the SBA4 is 5-position adjustable and features an integral, ambidextrous QD sling socket...
    HKP-19930
    $294.95
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    $294.95
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