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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  • HK416, MR556, HK417, MR762 Selector Lever - Ambi - Left
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    HK416, MR556, HK417, MR762 Selector Lever - Ambi - Left

    H&K Heckler & Koch

    $11.95
    Heckler & Koch HK416 Ambi Safety Selector Lever Factory HK polymer left side selector lever.  Compatible With: HK416 A1/A3 HK MR556 A1 HK417 HK MR762 A1  
    HKP-22310
    $11.95
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    $11.95
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  • HK416, MR556, HK417, MR762 Selector Lever - Ambi - Right
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    HK416, MR556, HK417, MR762 Selector Lever - Ambi - Right

    H&K Heckler & Koch

    $11.95
    Heckler & Koch HK416 Ambi Safety Selector Lever Factory HK polymer right side selector lever. Compatible With: HK416 A1/A3 HK MR556 A1 HK417 HK MR762 A1
    HKP-22309
    $11.95
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    Qty in Cart: 0
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    $11.95
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  • On Sale
    Magpul 30 Round AR-15, HK 556, HK 416 Magazine - BLEMISHED Magpul HKP-00639-B Magpul 30 Round AR-15, HK 556, HK 416 Magazine - BLEMISHED Magpul HKP-00639-B
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    HK416, 556, AR15 Magazine - 30 Round - BLEMISHED

    Magpul

    Now: $10.95
    Was: $18.95
    Magpul 30 Round AR-15, HK 556, HK 416 Magazine - BLEMISHED DOES NOT INLUDE DUST COVER COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. NON-windowed Gen 3 PMAG...
    HKP-00639-B
    Now: $10.95
    Was: $18.95
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    Now: $10.95
    Was: $18.95
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  • On Sale
    HK MP5 Magazine Locking Plate - 9mm - Black - USED Used - HKP HK MP5 9mm Magazine Locking Plate - Black - USED - HKP-99240
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    HK MP5 Magazine Locking Plate - 9mm - Black - USED

    HKP HK Parts

    Now: $3.95
    Was: $12.95
    HKP HK MP5 9mm Magazine Locking Plate - Black - USED ONLY 1 UNIT LEFT - AS PICTURED - SOLD INDIVIDUALLY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Locking...
    HKP-99240
    Now: $3.95
    Was: $12.95
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    Qty in Cart: 0
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    Now: $3.95
    Was: $12.95
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  • New - H&K/HKP Century Arms AP51 Fixed Stock Backplate - HKP-22188 Century Arms AP51 Fixed Stock Backplate
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    Century Arms AP51 Fixed Stock Backplate

    HKP HK Parts / Heckler & Koch

    $89.95
    H&K/HKP Century Arms AP51 Fixed Stock Backplate HKP's drop-in replacement backplate and recoil rod is expertly modified to fit the Century Arms AP51. Crafted to the precise length for optimal function and dependable performance, this backplate allows...
    HKP-22188
    $89.95
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    Qty in Cart: 0
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    $89.95
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  • New - HKP UMP Recoil Rod Spring - HKP-22089
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    HK UMP Recoil Rod Spring

    HKP HK Parts

    $9.95
    HKP UMP Recoil Rod Spring Upgrade or replace your UMP recoil system with this high-quality recoil rod spring from HK Parts. Whether you're maintaining a factory setup or enhancing a custom build, the HKP recoil rod spring is a perfect fit for UMP-style...
    HKP-22089
    $9.95
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    Qty in Cart: 0
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    $9.95
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  • On Sale
    Used - H&K UMP (.45 ACP) 25 Round Magazine - German LEO Markings - LIKE NEW - HKP-17917-B HK UMP (.45 ACP) 25 Round Magazine - German LEO Markings - LIKE NEW
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    HK UMP (.45 ACP) 25 Round Magazine - German LEO Markings - LIKE NEW

    H&K Heckler & Koch

    Now: $172.34
    Was: $229.95
    H&K UMP (.45 ACP) 25 Round Magazine - German LEO Markings - LIKE NEW Like-new PD trade in HK German UMP .45 cal 25 Round Factory Magazines. These magazines will fit all UMP factory firearms as well as the USC's that have been converted to accept UMP...
    HKP-17917-B
    Now: $172.34
    Was: $229.95
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    Qty in Cart: 0
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    Now: $172.34
    Was: $229.95
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  • Out Of Stock
    New - Nefarious Arms HK MR556/416 10.4" A5 Barrel - HKP-21873 HK416, MR556 Barrel - 5.56 - 10.4" - Threaded 1/2"x28 - A5

    HK416, MR556 Barrel - 5.56 - 10.4" - Threaded 1/2"x28 - A5

    Nefarious Arms

    $594.95
    Nefarious Arms HK MR556416 10.4" A5 Barrel An expertly crafted 10.4" barrel designed for the HK MR556 and 416 platforms. Featuring the A5 profile, this barrel balances durability and weight, making it an excellent choice for both tactical and...
    HKP-21873
    $594.95
    Out Of Stock
    Qty in Cart: 0
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    $594.95
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  • New - HKP HK MP5K .40/10 Stock Adapter with Stock - HKP-21834 HK MP5K Stock and Stock or Brace Adapter 10mm / .40 S&W
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    HK MP5K Stock and Stock or Brace Adapter 10mm / .40 S&W

    HKP HK Parts

    $289.95
    HKP HK MP5K .40/10mm Stock Adapter with Stock Designed to adapt UMP style and B&T folding stocks directly to the .40/10mm K platform. Made in the USA and available exclusively at HK Parts Compatible With: HK MP5K .40/10mm
    HKP-21834
    $289.95
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    Qty in Cart: 0
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    $289.95
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  • Out Of Stock
    New - B&T Bipod (Polymer) - Picatinny Mount - Rubber Feet - HKP-21773 Picatinny Bipod Mount - Polymer - Rubber Feet

    Picatinny Bipod Mount - Polymer - Rubber Feet

    B&T Brugger & Thomet

    $145.00
    B&T Bipod (Polymer) - Picatinny Mount - Rubber Feet Genuine B&T bipod with NAR adapter (Picatinny mount) for use on any firearm featuring a Picatinny bottom rail. 
    HKP-21773
    $145.00
    Out Of Stock
    Qty in Cart: 0
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    $145.00
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  • Out Of Stock
    New - B&T 5.56 Rotex-SF Titanium HUB Adapter - HKP-21713 B&T 5.56 Rotex-SF Titanium HUB Adapter

    B&T 5.56 Rotex-SF Titanium HUB Adapter

    B&T Brugger & Thomet

    $275.00
    B&T 5.56 Rotex-SF Titanium HUB Adapter The B&T Rotex-SF HUB is a durable mounting system compatible with all 1.375x24TPI "HUB" suppressors. The HUB easily threads into compatible suppressors and can be secured with a spanner wrench or...
    HKP-21713
    $275.00
    Out Of Stock
    Qty in Cart: 0
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    $275.00
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  • New - H&K HK G36/SL8 Sling/Bipod Eye Bolt - HKP-21654 HK G36, SL8 Handguard Eye Bolt - Slings, Bipods
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    HK G36, SL8 Handguard Eye Bolt - Slings, Bipods

    H&K Heckler & Koch

    $79.95
    H&K HK G36/SL8 Sling/Bipod Eye Bolt Factory HK sling and bipod eye bolt for H&K G36 and SL8 rifle models.  Steel construction with a durable black finish.  Installs easily into the forward portion of the handguard to provide a secure...
    HKP-21654
    $79.95
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    Qty in Cart: 0
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    $79.95
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