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 - JMac Customs 360HD 1/2-28 FD Facemount KeyMount (KeyMicro) - HKP-21825 HK416, MR556 Facemount KeyMount (KeyMicro) - 360HD 1/2-28 FD
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    HK416, MR556 Facemount KeyMount (KeyMicro) - 360HD 1/2-28 FD

    JMAC Customs

    $124.95
    JMac Customs 360HD 1/2-28 FD Facemount KeyMount (KeyMicro) The JMac Customs 360HD is a high-performance muzzle device designed for superior durability, recoil mitigation, and compatibility with suppressors. Engineered with 360° ports for optimal...
    HKP-21825
    $124.95
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    $124.95
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  • New - B&T HK G3 Side Rail - Short - HKP-21775 HK91, G3, MP7, G36 Side Rail - Short
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    HK91, G3, MP7, G36 Side Rail - Short

    B&T Brugger & Thomet

    $42.00
    B&T HK G3/HK91, G36, MP7 Side Rail - Short Swiss made B&T short side rail for the B&T quad rail handguard. Compatible With B&T Handguards For: HK91/G3 G36 MP7
    HKP-21775
    $42.00
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    $42.00
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  • Out Of Stock
    New - HKP HK MP5K Receiver Flat - Smooth Top - HKP-21550 HK MP5K Receiver Flat - Smooth Top

    HK MP5K Receiver Flat - Smooth Top

    HKP HK Parts

    $129.95
    HKP HK MP5K Receiver Flat - Smooth Top The MP5K receiver flat has been meticulously crafted by the original German tool and die maker of the LSC receiver flat, utilizing factory original German prints and specifications. This receiver boasts a flat top,...
    HKP-21550
    $129.95
    Out Of Stock
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    $129.95
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  • On Sale
    HK MP5, HK94, SP5 Binary Trigger Housing - Ambi - BFSIII - 9mm - INCOMPLETE - BLEMISHED HK MP5, HK94, SP5 Binary Trigger Housing - Ambi - BFSIII - 9mm - INCOMPLETE - BLEMISHED
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    HK MP5, HK94, SP5 Binary Trigger Housing - Ambi - BFSIII - 9mm - INCOMPLETE - BLEMISHED

    FA Franklin Armory

    Now: $599.95
    Was: $849.95
    HK MP5, HK94, SP5 Binary Trigger Housing - Ambi - BFSIII - 9mm - INCOMPLETE - BLEMISHED ONLY 1 UNIT AVAILABLE - AS PICTURED INCOMPLETE - MISSING GRIP COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN...
    HKP-20642-B
    Now: $599.95
    Was: $849.95
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    Now: $599.95
    Was: $849.95
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  • New - JMAC Universal Picatinny 8" Triangle Stock with 1913 Folding Mech - HKP-21245 Picatinny 8" Triangle Stock with 1913 Folding Mech
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    Picatinny 8" Triangle Stock with 1913 Folding Mech

    JMAC Customs

    $261.00
    JMAC Triangle Stock 8" Stock with 1913 Folding Mech Features: 2x Integrated QD Sling Socket 8" Length 0.275" Cheek Rise Drilled and tapped for optional cheek risers 7075 T6 Aluminum Hard-Coat Anodized **Not compatible w/LevTech Manufacturing panels...
    HKP-21245
    $261.00
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    $261.00
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  • New - HKP HK UMP Extended Top Rail - Red - HKP-21049 HK UMP Extended Top Rail - Red
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    HK UMP Extended Top Rail - Red

    HKP HK Parts

    $59.95
    HKP HK UMP Extended Top Rail - Red Nearly an 1" longer than the standard length top rail. This picatinny top rail allows the user to add an eotech, aimpoint, acog, etc. Made in the USA from aluminum material and hard coat anodize in a beutiful Red...
    HKP-21049
    $59.95
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    $59.95
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  • New - H&K HK MP5K 0,1,3 Burst Trigger Housing or Frame - HKP-01684 HK MP5K  0,1,3 Burst Trigger Housing or Frame
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    HK MP5K 0,1,3 Burst Trigger Housing or Frame

    H&K Heckler & Koch

    $224.95
    MP5K & SP89 Ambidextrous Grip Frame, Trigger Housing marked with the safe, semi & 3rd burst options only (3 position burst only housing). A Genuine Heckler and Koch part. This housing is made for ambidextrous trigger configurations. Trigger Pack...
    HKP-01684
    $224.95
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    $224.95
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  • On Sale
    New - TPM - Drake Bolt Knob - Titanium - HKP-20782 Bolt Knob - Drake - Titanium
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    Bolt Knob - Drake - Titanium

    Tactical Precision MFG

    Now: $24.95
    Was: $44.99
    Drake Bolt Knob - Aluminum These bolt knobs are made from aluminum and are finished a in midnight bronze Cerakote and will fit any 5/16-24 threaded bolt handle. Features: Material: aluminum Color: titanium Threading: 5/16-24 Compatible...
    HKP-20782
    Now: $24.95
    Was: $44.99
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    Now: $24.95
    Was: $44.99
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  • On Sale
    New - TPM - Remington 700 - 30 MOA - Scope Base Short Action - HKP-20765 Remington 700 - 30 MOA - Scope Base Short Action
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    Remington 700 - 30 MOA - Scope Base Short Action

    Tactical Precision MFG

    Now: $35.95
    Was: $76.99
    TPM Remington 700 Scope Base Long Action 30 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 30 MOA options and will match factory...
    HKP-20765
    Now: $35.95
    Was: $76.99
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    Was: $76.99
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  • On Sale
    Used - H&K HK SL8 Adjustable Buttstock Piece - Used - Black - HKP-20052 HK SL8 Adjustable Buttstock Piece - Used
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    HK SL8 Adjustable Buttstock Piece - Used

    H&K Heckler & Koch

    Now: $9.95
    Was: $29.95
    H&K HK SL8 Adjustable Buttstock Piece - Used
    HKP-20052
    Now: $9.95
    Was: $29.95
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    Now: $9.95
    Was: $29.95
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  • On Sale
    New - KDG HK MR556 13.75" M-LOK Rail System - Black - HKP-19244 HK416, MR556 Rail System - 13.75" - M-LOK, Picatinny
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    HK416, MR556 Rail System - 13.75" - M-LOK, Picatinny

    KDG Kinetic Development Group

    Now: $259.95
    Was: $399.95
    Rail System - 13.75" - M-LOK - HK MR556 The New KDG HK 556 M-LOK rails are direct mount rail system, replacing the factory HK 556 rail systems. These new rails are identical in design to their big brother, the KDG HK 762 M-LOK Rail system. Like the 762...
    HKP-19244
    Now: $259.95
    Was: $399.95
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    Now: $259.95
    Was: $399.95
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  • New - H&K HK SL8 Adjustable Buttstock Piece - Black - HKP-17837 HK SL8 Adjustable Buttstock Piece - Black
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    HK SL8 Adjustable Buttstock Piece - Black

    H&K Heckler & Koch

    $39.95
    HK SL8 Adjustable Buttstock Piece - Black Newer style that is black in color. Please note that the pic shows a gray unit but this offering is all black.
    HKP-17837
    $39.95
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    $39.95
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