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 - H&K MP5K/SP89 9mm SEF Navy Style Trigger Housing - Clipped & Pinned - HKP-00407 HK MP5K, SP89 Trigger Housing - SEF Navy - Clipped and Pinned
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    HK MP5K, SP89 Trigger Housing - SEF Navy - Clipped and Pinned

    H&K Heckler & Koch

    $199.95
    H&K MP5K/SP89 9mm SEF Navy Style Trigger Housing - Clipped & Pinned Each housing is clipped & pinned for the semi-auto shelf of the HK MP5K builds or SP89 firearms. Specifications: Made In Germany Clipped & Pinned SEF Pictogram...
    HKP-00407
    $199.95
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  • New - Choate Adjustable Folding Stock 1/2 inch Spacer - HKP-19032 Adjustable Folding Stock 1/2 inch Spacer
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    Adjustable Folding Stock 1/2 inch Spacer

    Choate

    $7.95
    Choate Adjustable Folding Stock 1/2 inch Spacer This spacer adds 1/2 inch to our HK Choate folding stocks that uses the adjustable length of pull spacer system. You can add up to 5 of these spacers to your stock.  
    HKP-19032
    $7.95
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    $7.95
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  • Used - XS Front & Rear Night Sight System - HK - HKP-00883 HK MP5, HK90 Series Night Sight System - Front and Rear
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    HK MP5, HK90 Series Night Sight System - Front and Rear

    XS Sights

    $153.99
    XS Front & Rear Night Sight System - HK Compatible With: HK MP5, 94 HK MP5K, SP89 HK 90 series or Clones HK 91, G3, PTR HK 93, 33, 53 HK MP5 40/10 HK21 HK 416 Other HK 90 series custom builds that use the diopter-style sights.
    HKP-00883
    $153.99
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  • New - HKP MP5F & MP5 40,10 Cocking Tube, Handle, Support Combo - HKP-18152 HK MP5F, MP5 Cocking Tube and Handle - Support Combo - .40 S&W / 10mm
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    HK MP5F, MP5 Cocking Tube and Handle - Support Combo - .40 S&W / 10mm

    HKP HK Parts

    $249.95
    HKP MP5F & MP5 40,10 Cocking Tube, Handle, Support Combo HK MP5 40/10 or MP5 F factory correct USA made cocking tube and cocking tube support assembly complete. This is a factory correct MP5F/MP5 40/10 Cocking tube assembly complete. This assembly...
    HKP-18152
    $249.95
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  • On Sale
    HK MP5K, MKE AP5-P Trigger Housing - 9mm - Contoured - 0,1 - BLEMISHED HK MP5K, MKE AP5-P Trigger Housing - 9mm - Contoured - 0,1 - BLEMISHED
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    HK MP5K, MKE AP5-P Trigger Housing - 9mm - Contoured - 0,1 - BLEMISHED

    MKE

    Now: $34.95
    Was: $49.95
    HK MP5K, MKE AP5-P Trigger Housing - 9mm - Contoured - 0,1 - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. This contoured trigger housing is...
    HKP-99396
    Now: $34.95
    Was: $49.95
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    Now: $34.95
    Was: $49.95
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  • HK91, G3 Folding Stock - HDA3 HK91, G3 Folding Stock - HDA3
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    HK91, G3 Folding Stock - HDA3

    Haga Defense

    $349.95
    HDA3 Folding Stock for HK91, G3 The HDA3 is a modular, USA-made stock system developed by Haga Defense and A3 Industries. Built for strength, adaptability, and cross-platform compatibility, it delivers premium rigidity, smooth adjustability, and...
    HKP-22356-M
    $349.95
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  • HK MP5, MP5K Optic Mount - Optic, NV Laser - Picatinny, Aimpoint T-1, T-2, ACRO P-1, P-2 HK MP5, MP5K Optic Mount - Optic, NV Laser - Picatinny, Aimpoint T-1, T-2, ACRO P-1, P-2
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    HK MP5, MP5K Optic Mount - Optic, NV Laser - Picatinny, Aimpoint T-1, T-2, ACRO P-1, P-2

    MI Midwest Industries

    $174.95
    Midwest Industries HK MP5, MP5K Optic and IR, NV, Laser Mount for Aimpoint T-1/T-2 and Aimpoint ACRO Tall, clamp-on optic and laser mount for MP5 and MP5K pattern firearms. Allows you to run a micro red dot and an IR illuminator, and/or laser at the same...
    HKP-22393-M
    $174.95
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    $174.95
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  • HK416, MR556, HK417, MR762 Handguard Locking Screw - A4 Style HK416, MR556, HK417, MR762 Handguard Locking Screw - A4 Style
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    HK416, MR556, HK417, MR762 Handguard Locking Screw - A4 Style

    H&K Heckler & Koch

    $22.95
    HK416, MR556, HK417, MR762 - A4 - Handguard Locking Screw Replacement locking screw that secures the A4 handguard to the upper receiver.  Compatible With: HK HK416 A4 HK MR556 A4 HK HK417 A4 (2 required per handguard) HK MR762 A4 (2 required per...
    HKP-22304
    $22.95
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  • Used - H&K G3 Complete Parkerized Rear Receiver Section w/ Rear Sight - SURPLUS - HKP-22164 HK G3 Rear Receiver Section with Rear Sight - Complete - Parkerized - SURPLUS
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    HK G3 Rear Receiver Section with Rear Sight - Complete - Parkerized - SURPLUS

    H&K Heckler & Koch

    $54.95
    H&K G3 Complete Parkerized Rear Receiver Section w/ Rear Sight - SURPLUS UNIT QUALITY MAY VARY - SEE PHOTOS FOR EXAMPLE OF CONDITION RANGE Genuine H&K parkerized steel rear receiver section with fully installed G3 rear sight assembly, two stock...
    HKP-22164
    $54.95
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    $54.95
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  • New - HKP HK MP5/K Billeted Scope Tab - Weldment - HKP-22063
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    HK MP5, MP5K Scope Tab - Billeted - Weldment

    HKP HK Parts

    $9.95
    HKP HK MP5/K Billeted Scope Tab - Weldment Billeted scope tab weldment for HK MP5, MP5K, and compatible clones. Provides a correct mounting point for optics. Compatible With: HK MP5/94 HK MP5K/SP89 HK MP5 40/10 Clones or custom builds
    HKP-22063
    $9.95
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  • New - Magpul AR/M4 TMAG 20 Round GEN M3 Magazine - Translucent OD Green - HKP-22035 HK416, MR556, AR-15, M4 Magazine - TMAG Gen 3 - 20 Round - Translucent OD Green
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    HK416, MR556, AR-15, M4 Magazine - TMAG Gen 3 - 20 Round - Translucent OD Green

    Magpul

    $24.95
    Magpul AR/M4 TMAG® 20 Round GEN M3™ Magazine - Translucent OD Green US-made translucent 20 round magazine optimized for AR/M4 platforms, but modified to permit operation with other 5.56 and .223 STANAG-compatible rifles. Specifications: Made...
    HKP-22035
    $24.95
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    $24.95
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  • New - H&K MR762 A4 1.0mm Gas Vent Screw - HKP-21954 HK MR762 A4 Gas Vent Screw - 1.0mm-2.5mm
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    HK MR762 A4 Gas Vent Screw - 1.0mm-2.5mm

    H&K Heckler & Koch

    $29.95
    Heckler and Koch MR762 A4 Gas Vent Screws German gas vent screw for MR762 A4 gas block. Specifications: Factory reference: 1.3mm is the common factory vent screw size for MR556 A4 Sizing reminder: Larger mm equals more venting, Smaller mm...
    HKP-21954-M
    $29.95
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