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 G36, HK SL8 Side Rail Factory HK - Black - BLEMISHED New - HK G36, HK SL8 Side Rail Factory HK - Black - USED - BLEMISHED - HKP-01962-B
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    HK G36, HK SL8 Side Rail Factory HK - Black - BLEMISHED

    H&K Heckler & Koch

    Now: $34.95
    Was: $67.95
    HK G36, HK SL8 Side Rail Factory HK - Black - BLEMISHED SCRATCHES. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Up to two side rails can be used on a G36 UMP,...
    HKP-01962-B
    Now: $34.95
    Was: $67.95
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    Was: $67.95
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  • New - H&K HK MP5/SP5 3 Lug Barrel - New Old Stock - Rare - HKP-21662 HK MP5, SP5 Barrel - 9mm - 3 Lug - New Old Stock - Rare
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    HK MP5, SP5 Barrel - 9mm - 3 Lug - New Old Stock - Rare

    H&K Heckler & Koch

    $987.95
    H&K HK MP5/SP5 3 Lug Barrel - New Old Stock - Rare Factory German date coded with H&K logo. This new old stock 3-lug item is incredibly rare and in pristine condition. An absolute gem in the market. We only have a limited number available, and...
    HKP-21662
    $987.95
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    $987.95
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  • Out Of Stock
    New - B&T Flash Hider - 5.56mm NATO, 1/2x28 - HKP-21757 HK416, MR556 Flash Hider - Threaded 1/2x28

    HK416, MR556 Flash Hider - Threaded 1/2x28

    B&T Brugger & Thomet

    $125.00
    B&T Brugger and Thomet's Flash Hider - for 5.56mm NATO caliber weapons threaded 1/2x28 Factory B&T 1/2x28 flash hider for 5.56 rifles.   Compatible With: HK 416 HK MR556 HK MR223 B&T APC223 AR-15 M16 5.56 / .223 firearms threaded...
    HKP-21757
    $125.00
    Out Of Stock
    Qty in Cart: 0
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    $125.00
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  • Out Of Stock
    New - H&K HK MR762 Single Magazine Pouch - Tan Camo - HKP-21622 HK MR762 Single Magazine Pouch - Tan Camo

    HK MR762 Single Magazine Pouch - Tan Camo

    H&K Heckler & Koch

    $89.95
    H&K HK MR762 Single Magazine Pouch - Tan Camo Factory HK single magazine pouch, Molle compatible Compatible With: HK MR762
    HKP-21622
    $89.95
    Out Of Stock
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    $89.95
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  • New - RCM HK MP5 .40 S&W Barrel - Threaded 14x.75 - 3-Lug - HKP-21582 HK MP5 Barrel - .40 S&W - 8.85" - Threaded 14x.75 with 3 Lug
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    HK MP5 Barrel - .40 S&W - 8.85" - Threaded 14x.75 with 3 Lug

    RCM

    $279.95
    RCM HK MP5 .40 S&W Barrel - Threaded 14x.75 - 3-Lug This is the ultimate US-made barrel for any new or conversion build for the MP5 .40 cal. Crafted from top-grade CHF 41v40 material, it’s machined to impeccable standards. With the correct...
    HKP-21582
    $279.95
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    $279.95
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  • New - B&T G36 (5.56/.223) Flash Hider for M.A.R.S QD Suppressor - HKP-21522 B&T G36 (5.56/.223) Flash Hider for M.A.R.S QD Suppressor
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    B&T G36 (5.56/.223) Flash Hider for M.A.R.S QD Suppressor

    B&T Brugger & Thomet

    $144.99
    B&T G36 (5.56/.223) Flash Hider for M.A.R.S QD Suppressor Specifications: Made in Switzerland Threaded 15x1 RH Does not include face shims Compatible With: HK G36 5.56/.223 firearms threaded 15X1 RH Compatible with the Following Suppressors: M.A...
    HKP-21522
    $144.99
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    $144.99
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  • New - B&T HK G3/91 (7.62x51/.308) Flash Hider for M.A.R.S Suppressor - Threaded 15x1 RH - HKP-21518 HK G3/91 (7.62x51/.308) Flash Hider for M.A.R.S Suppressor - Threaded 15x1 RH
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    HK G3/91 (7.62x51/.308) Flash Hider for M.A.R.S Suppressor - Threaded 15x1 RH

    B&T Brugger & Thomet

    $109.95
    B&T HK G3/91 (7.62x51/.308) Flash Hider for M.A.R.S Suppressor - Threaded 15x1 RH Compatible With: HK G3/91/PTR HK417/MR762 HK PSG1 7.62x51/.308 firearms threaded 15x1 RH Compatible With the Following Suppressors: M.A.R.S QD...
    HKP-21518
    $109.95
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    $109.95
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  • On Sale
    New - TPM 3 Port .30 Cal Muzzle Brake with Crush Washer - HKP-20900 .30 Cal Muzzle Brake - 3 Port - Crush Washer
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    .30 Cal Muzzle Brake - 3 Port - Crush Washer

    Tactical Precision MFG

    Now: $47.95
    Was: $72.99
    TPM 3 Port .30 Cal Muzzle Brake with Crush Washer This 3 port muzzle brake is made for any 5/8x24 application and comes with a crush washer. Specifications: Dimensions: 2″ x 0.75″ x 0.75″ Weight: 0.67 oz Threading: 5/8x24
    HKP-20900
    Now: $47.95
    Was: $72.99
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    Now: $47.95
    Was: $72.99
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  • Used - HK G3 - FMP Early Type Demilled Front End - HKP-20845 HK G3 - FMP Early Type Demilled Front End
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    HK G3 - FMP Early Type Demilled Front End

    FMP HK CONTRACT

    $99.95
    HK G3 - FMP Early Type Demilled Front End Early style G3 front end with no hanger. These are the perfect option for those doing custom builds. Good condition over all. Includes: Cocking tube Complete cocking handle assembly Trunnion Barrel pin
    HKP-20845
    $99.95
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    $99.95
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  • On Sale
    New - TPM - Flash Hider .22 Cal - Titanium - HKP-20778 Flash Hider .22 Cal - Titanium - Silver
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    Flash Hider .22 Cal - Titanium - Silver

    Tactical Precision MFG

    Now: $44.95
    Was: $88.99
    TPM - Flash Hider .22 Cal - Titanium This titanium tri-port muzzle brake reduces recoil, muzzle rise and hides the flash. Dust does not kick up due to three offset front ports. Full automatic capable. Less than 1" of rise with a 30 round 5.56 mag...
    HKP-20778
    Now: $44.95
    Was: $88.99
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    Was: $88.99
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  • On Sale
    New - TPM - Acorn Bolt Knob - Titanium  - HKP-20761 Bolt Knob - Acorn - Titanium
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    Bolt Knob - Acorn - Titanium

    Tactical Precision MFG

    Now: $24.95
    Was: $48.99
    Acorn Bolt Knob The Acorn Bolt knob is the perfect addition for those that want to dress up their rifle. It has a good grip, and they stand out in the crowd. Features: Dimensions: 1.5" x 7/8" x 7/8 Weight: 2 oz. Material: Titanium Threading: 5/16x24...
    HKP-20761
    Now: $24.95
    Was: $48.99
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    Now: $24.95
    Was: $48.99
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  • New - HDPS HK USC, UMP Stock Block C Eyelet / Thumb Screw - HKP-20688 HK USC, UMP Stock Block C Eyelet with Thumb Screw
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    HK USC, UMP Stock Block C Eyelet with Thumb Screw

    HDPS

    $169.95
    HDPS HK USC, UMP Stock Block C Eyelet / Thumb Screw Great option since factory HK UMP stocks are hard to find and expensive. The HDPS HK USC/UMP stock block "C." Each unit comes with eyelet / thumb screw design. This is the type for use with the ACE...
    HKP-20688
    $169.95
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    $169.95
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