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 - B&T QD Mount "Skeleton" for Aimpoint T Series 52mm - HKP-21772 Picatinny Optic Mount - 52mm - Skeleton - Aimpoint T Series
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    Picatinny Optic Mount - 52mm - Skeleton - Aimpoint T Series

    B&T Brugger & Thomet

    $165.00
    B&T QD Mount "Skeleton" for Aimpoint T Series 52mm B&T universal Picatinny mount 52mm QD riser mount for the Aimpont T Series of optics. Quickly attach and detach your Aimpoint T Series optic with B&T's precision machined 52mm mount. The...
    HKP-21772
    $165.00
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    $165.00
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  • New - B&T HK G36 Helmet Stock - HKP-21692 HK G36 Helmet Stock
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    HK G36 Helmet Stock

    B&T Brugger & Thomet

    $280.00
    B&T HK G36 Helmet Stock The B&T G36 helmet stock was designed to clearance the operator's helmet when viewing the target through the rifle's sights.  This military derived design is precision made in Switzerland. Compatible With: HK G36
    HKP-21692
    $280.00
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    $280.00
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  • HK G3K, HK33K Flash Hider - 4 Prong - Open
HK G3K, HK33K Flash Hider - 4 Prong - Open
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    HK G3K, HK33K Flash Hider - 4 Prong - Open

    RCM

    $187.95
    RCM HK G3K/HK33K Flash Hider - 4 Prong - Open The RCM G3K and HK33K flash hider can be welded to a 12.69" barrel to achieve a non-SBR OAL of 16 plus inches or add to any other configuration. Made in the US from ordnance grade steel and counts as 1 922r...
    HKP-21599
    $187.95
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  • HK MP5K Parts Kit - .40 S&W - Pistol Build HK MP5K Parts Kit - .40 S&W - Pistol Build
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    HK MP5K Parts Kit - .40 S&W - Pistol Build

    $1,829.95
    HKP MP5K .40 S&W Pistol Build Kit MP5K .40 complete pistol build kit. Featuring the latest in highest quality components for an unparalleled build. Equipped with a 9/16x24 3-lug threaded barrel to accept a wide variety of muzzle devices and...
    HKP-21534
    $1,829.95
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    $1,829.95
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  • New - B&T HK G36/SL8 Brass Catcher - HKP-21530 HK G36, SL8 Brass Catcher
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    HK G36, SL8 Brass Catcher

    B&T Brugger & Thomet

    $284.95
    B&T HK G36 & SL8 Brass Catcher This brass catcher is expertly crafted for the HK G36. The B&T QD attachment system enables quick mounting and dismounting. For optimal compatibility, the G36 must be equipped with a B&T quad rail handguard...
    HKP-21530
    $284.95
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    $284.95
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  • New - RCM HK MP5 & MP5K 40/10 SD 115 Degree Locking Piece - HKP-21525 HK MP5SD, MP5K Locking Piece - 115 Degree - .40 S&W, 10mm
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    HK MP5SD, MP5K Locking Piece - 115 Degree - .40 S&W, 10mm

    RCM

    $44.95
    RCM HK MP5 & MP5K 40/10 SD 115 Degree Locking Piece Compatible With:  MP5/K 10  MP5/K 40 
    HKP-21525
    $44.95
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    $44.95
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  • New - Strike Industries HK 416 - 9" Light Speed Handguard - HKP-21313 HK416 Handguard - 9" - Strike Industries GRIDLOK - Lightspeed
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    HK416 Handguard - 9" - Strike Industries GRIDLOK - Lightspeed

    Strike Industries

    $318.95
    Strike Industries HK 416 - 9" Handguard - Gridlok - Light Speed The Strike Industries GRIDLOK® Rail for 416 gives you a primary, a secondary or multiple setup options as a quick and direct handguard swap. The GRIDLOK® Rail for 416 has the SI...
    HKP-21313
    $318.95
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    $318.95
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  • New - RCM HK MP5K 10mm Barrel - Threaded 9/16x24 - HKP-21157 HK MP5K Barrel - 10mm - Threaded 9/16x24 with 3 Lug
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    HK MP5K Barrel - 10mm - Threaded 9/16x24 with 3 Lug

    RCM

    $279.95
    RCM HK MP5K 10mm Barrel - Threaded 9/16x24 Enhance the performance of your MP5K with the RCM HK MP5K 10mm Barrel. This barrel is precision engineered for superior accuracy and durability, making it an essential upgrade for firearm enthusiasts...
    HKP-21157
    $279.95
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    $279.95
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  • On Sale
    New - H&K HK 416 14.5 Upper Receiver Assembly - OTB - Unfired - HKP-02095 HK416 Upper Receiver Assembly - 14.5" Barrel - OTB - Unfired
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    HK416 Upper Receiver Assembly - 14.5" Barrel - OTB - Unfired

    H&K Heckler & Koch

    Now: $9,999.95
    Was: $14,499.95
    Heckler and Koch Unfired "BF" Date Coded HK Factory German 416 14.5" Upper Kit No FFL is required. This upper assembly is only considered a part. This is a rare offering. All NFA rules apply - Check your local short barrel rifle regulations...
    HKP-02095
    Now: $9,999.95
    Was: $14,499.95
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  • On Sale
    New - TPM - Aluminum Rifle Shroud - Black - HKP-20775 Ruger Precision Rifle Bolt Shroud
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    Ruger Precision Rifle Bolt Shroud

    Tactical Precision MFG

    Now: $28.95
    Was: $89.99
    Tactical Precision MFG Aluminum Ruger Precision Rifle Bolt Shroud Replacement bolt shroud for Ruger Precision rifles made from machined aluminum and colored in black Cerakote.
    HKP-20775
    Now: $28.95
    Was: $89.99
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    Was: $89.99
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  • On Sale
    New - TPM - Remington 700 - 20 MOA - Scope Base Long Action - HKP-20763 Remington 700 - 20 MOA - Scope Base Long Action
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    Remington 700 - 20 MOA - Scope Base Long Action

    Tactical Precision MFG

    Now: $35.95
    Was: $76.99
    TPM Remington 700 Scope Base Long Action 20 MOA These tight tolerance, bomb proof scope rail allow the shooter to make best use of the scope's elevation adjustment for those long-range shots and engagements with 20 MOA options and will match factory...
    HKP-20763
    Now: $35.95
    Was: $76.99
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  • On Sale
    Used - H&K HK33 A3 German Parts Kit - Used - HKP-20723
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    HK33 A3 German Parts Kit

    H&K Heckler & Koch

    Now: $3,249.95
    Was: $3,389.95
    Heckler and Koch HK33 A3 Parts Kits - Surplus Rare HK33 parts kit professionally de-milled and prepared in accordance with BATF specifications. This configuration includes the A3 collapsible stock, factory 0, 1, 25 trigger group, wide handguard, HK...
    HKP-20723
    Now: $3,249.95
    Was: $3,389.95
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    Now: $3,249.95
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