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
    HK 416 A5 Bolt Carrier H&K Heckler & Koch HKP-22328 HK 416 A5 Bolt Carrier H&K Heckler & Koch HKP-22328
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    HK416 A5 Bolt Carrier

    H&K Heckler & Koch

    Now: $1,497.95
    Was: $1,997.95
    H&K HK416 A5 Bolt Carrier Factory HK416 A5 full auto bolt carrier.  This carrier is backwards compatible with earlier HK416 A1 and A3 variants. Features the updated captive firing pin retaining system. Compatible With: HK416 A5 HK416 A1 HK416...
    Now: $1,497.95
    Was: $1,997.95
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    Now: $1,497.95
    Was: $1,997.95
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  • HK MP5 .22LR A2 Stock Adapter HKP HK Parts HKP-22326 HK MP5 Stock or Brace Adapter - A2 - .22LR
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    HK MP5 Stock or Brace Adapter - A2 - .22LR

    HKP HK Parts

    $124.95
    HK MP5 .22LR A2 Stock Adapter The MP5 .22LR adapter provides a solid mounting interface to add an HK91/G3 A2 stock section. Features: Ambidextrous QD sling attachment points Easy installation with included hardware CNC machined from aircraft-grade...
    $124.95
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    $124.95
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  • HK 417/MR762 Bolt Carrier H&K Heckler & Koch HKP-22282 HK 417/MR762 Bolt Carrier H&K Heckler & Koch HKP-22282
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    HK417 Bolt Carrier - Full Auto

    H&K Heckler & Koch

    $1,859.95
    H&K HK417 Bolt Carrier - Full Auto Genuine factory full auto HK417 bolt carrier.  Although designed for the full auto HK417, the carrier is compatible with MR762 receivers. Limited number available. Compatible With: HK417 HK...
    $1,859.95
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    $1,859.95
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  • On Sale
    New - MKE -4 Roller for Bolt Head 7.96mm - Under-sized - HKP-22238 MKE -4 Roller for Bolt Head 7.96mm - Under-sized MKE HKP-22238
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    HK 90 Series Locking Roller for Bolt Head - 7.96mm

    MKE

    Now: $22.95
    Was: $28.95
    MKE -4 Roller for Bolt Head 7.96mm - Under-sized The proper roller size is essential for proper head spacing and bolt gap. Made in Turkey by MKE on HK tooling.  Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the...
    Now: $22.95
    Was: $28.95
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    Now: $22.95
    Was: $28.95
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  • New - MKE 90 Series Sear & Trigger Axle - HKP-22233 MKE 90 Series Sear & Trigger Axle MKE HKP-22233
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    HK90 Series Sear and Trigger Axle - USA

    MKE

    $1.99
    HK Sear and Trigger Axle For 90 Series - SURPLUS MKE sear and trigger axle for the 90 series style trigger packs. Each axle pin (aka pivot pin) measures .197 inches (5.0mm). Each HK trigger pack uses a total of 2 of these axle pins per trigger pack...
    $1.99
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    $1.99
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  • New - B&T Assault Closed Tine Muzzle Device - HK416/MR556 - 1/2x28 - HKP-22217 Lee Sporting LS5 HK MP5K Complete Trigger Group Flat Trigger - Semi shelf - 3D-Printed Nylon - BLEMISHED Lee Sporting, Magpul HKP-20484-B
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    HK416, MR556 Muzzle Device - Assault - Closed Tine - 1/2x28

    B&T Brugger & Thomet

    $109.00
    B&T Assault Closed Tine Muzzle Device - HK416/MR556 - 1/2x28 Factory B&T 1/2x28 flash hider and suppressor adapter for 5.56 rifles. Includes: ROTEX flash hider Shim kit Rocksett pipette Features: Swiss-manufactured Threaded 1/2x28 High...
    $109.00
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    $109.00
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  • On Sale
    Used - H&K UMP/USC 3 Position (0,1,F) Navy Lower Housing - (.40 S&W/.45 ACP/9mm) - USED - HKP-99292 HK UMP, USC Housing - Lower - Navy Grip - 40 S&W / .45 ACP / 9mm - USED
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    HK UMP, USC Housing - Lower - Navy Grip - 40 S&W / .45 ACP / 9mm - USED

    H&K Heckler & Koch

    Now: $374.96
    Was: $649.95
    H&K Heckler & Koch's HK UMP and HK USC Housing - Lower - Navy Grip - 40 S&W / .45 ACP / 9mm - USED  Priced for ONE Navy Lower Housing ONLY - Each unit Sold INDIVIDUALLY ONLY 4 UNITS AVAILABLE - Condition Varies by Unit Genuine H&K...
    Now: $374.96
    Was: $649.95
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    Now: $374.96
    Was: $649.95
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  • On Sale
    New - B&T HK MP5 Folding Helmet Stock - Adjustable Length - USED - HKP-99271 HK MP5 Folding Helmet Stock - Adjustable Length - USED
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    HK MP5 Folding Helmet Stock - Adjustable Length - USED

    B&T Brugger & Thomet

    Now: $209.96
    Was: $379.95
    B&T HK MP5 Folding Helmet Stock - Adjustable Length - USED ONLY 3 UNITS AVAILABLE - AS PICTURED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Swiss...
    Now: $209.96
    Was: $379.95
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    Now: $209.96
    Was: $379.95
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  • On Sale
    HK MP5 Trigger Housing - 2 Position - Push Pin - USED HK MP5 Trigger Housing - 2 Position - Push Pin - USED
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    HK MP5 Trigger Housing - 2 Position - Push Pin - USED

    USA

    Now: $48.71
    Was: $99.95
    US-Made HK MP5 2 Position Trigger Housing - Push Pin - USED Priced for ONE Trigger Housing - Condition Varies by Unit - Sold Individually Used US-made 2-position housing for the MP5. Compatible With: HK MP5 THIS CLOSEOUT PART IS NOT ELIGIBLE FOR...
    Now: $48.71
    Was: $99.95
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    Now: $48.71
    Was: $99.95
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  • Out Of Stock
    On Sale
    New - Titan Tactical HK SL8/G36 Ultra Low Profile Optic Top Rail V2 - HKP-99235 HK SL8, G36 Optic Mount - Ultra Low Profile - Picatinny Rail

    HK SL8, G36 Optic Mount - Ultra Low Profile - Picatinny Rail

    Now: $322.46
    Was: $599.95
    Titan Tactical HK SL8/G36 Ultra Low Profile Optic Top Rail V2 ONLY 2 UNITS AVAILABLE - AS PICTURED  DOES NOT INCLUDE HARDWARE. PRICE IS PER MAGAZINE - SOLD INDIVIDUALLY. Precision-machined 6061 aluminum optic rail for HK SL8 and G36 rifles. Sits...
    Now: $322.46
    Was: $599.95
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    Now: $322.46
    Was: $599.95
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  • On Sale
    Used - Surefire HK G36K Handguard - Used - Rare - HKP-22210 HK G36K Handguard - LED Light - Used - Rare
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    HK G36K Handguard - LED Light - Used - Rare

    Surefire

    Now: $549.95
    Was: $1,349.95
    Surefire HK G36K Handguard - Used - Rare SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. This authentic Surefire handguard for the HK G36K is a rare find with only a few units available. A great collector’s...
    Now: $549.95
    Was: $1,349.95
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    Now: $549.95
    Was: $1,349.95
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  • Out Of Stock
    HK416, MR556 Bayonet Adapter - M27 Style HK416, MR556 Bayonet Adapter - M27 Style

    HK416, MR556 Bayonet Adapter - M27 Style

    H&K Heckler & Koch

    $61.95
    Heckler and Koch Bayonet Adapter HK416, MR556 for M27 Build OEM bayonet adapter for HK416 and MR556 rifles for M27-style builds. Mounts to the barrel assembly to accept a standard bayonet. Specifications Bayonet adapter only (roll pin sold...
    $61.95
    Out Of Stock
    Qty in Cart: 0
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    $61.95
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