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 - B&T HK G36/G36K (5.56/.223) Mounting Rail - HKP-21461 HK G36, G36K Optic Mount - Dual Rail, Emergency Sight - NATO Accessory Rail
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    HK G36, G36K Optic Mount - Dual Rail, Emergency Sight - NATO Accessory Rail

    B&T Brugger & Thomet

    $397.95
    B&T HK G36/G36K (5.56/.223) Mounting Rail B&T NAR (Picatinny compatible) mounting rail for HK G36/G36K with emergency sight, dual rail. Compatible With: HK G36 HK G36K  
    HKP-21461
    $397.95
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    $397.95
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  • On Sale
    New - Magpul / HKP HK MP5 SSTG - HKP-21261-M HK MP5, SP5 Trigger Group - Single Stage - SSTG
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    HK MP5, SP5 Trigger Group - Single Stage - SSTG

    Magpul

    Now: $499.95
    Was: $639.95
    SSTG Magpul trigger group The Single Stage Trigger Group is a blend between the past and future. The trigger pack begins life as a factory German trigger pack before being professionally converted into a semi-auto trigger pack. After the conversion, each...
    HKP-21261
    Now: $499.95
    Was: $639.95
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    Now: $499.95
    Was: $639.95
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  • New - HKP HK MP5 Single Stage Semi Auto Trigger Pack - SEF - HKP-21083 HK MP5 Trigger Pack - Single Stage Semi Auto - SEF
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    HK MP5 Trigger Pack - Single Stage Semi Auto - SEF

    HKP HK Parts

    $449.95
    HKP/H&K MP5 9mm Semi-Auto SEF Single Stage Trigger Pack This trigger pack starts as a factory F/A trigger pack before being converted into a semi-auto trigger pack and receiving single-stage trigger work. This is the best option for users who...
    HKP-21083
    $449.95
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    $449.95
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  • New - HK UMP .45 15 Round Magazine Spring - HKP-20679 HK UMP 45 Magazine Spring - .45 ACP - 15 Round - US
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    HK UMP 45 Magazine Spring - .45 ACP - 15 Round - US

    HKP HK Parts

    $9.95
    HK UMP .45 15 Round Magazine Spring Perfect for spares and to have on hand as these are consumable item that needs to be replaced from time to time. A must have item if you own a USC/UMP conversion or UMP.
    HKP-20679
    $9.95
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    $9.95
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  • New - Magpul HK MP5 AR Match Trigger Group - HKP-20666 HK MP5 Trigger Group - AR Match
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    HK MP5 Trigger Group - AR Match

    Magpul

    $649.95
    Magpul AR Match Trigger Group for HK MP5 Our new and improved HK-AR Navy ambidextrous lower housing is now paired with our match trigger pack and a Magpul MOE grip to make this complete MP5-AR style match trigger group. This trigger group is a drop-in...
    HKP-20666
    $649.95
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    $649.95
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  • New - H&K HK UMP .45 Conversion Kit - HKP-20623 HK UMP .45 Conversion Kit
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    HK UMP .45 Conversion Kit

    $1,099.95
    H&K HK UMP .45 Conversion Kit This kit optimizes the UMP platform by allowing the user swap between calibers in approximately 5 minutes. The Michael's machine semi-auto bolt pairs perfectly with the TPM and Gideon Shadow receivers as well as USC to...
    HKP-20623
    $1,099.95
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    $1,099.95
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  • Used - HK SL8 Magwell - Used - Gray - HKP-20056 HK SL8 Magwell - Used - Gray
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    HK SL8 Magwell - Used - Gray

    USA

    $9.95
    HK SL8 Magwell - Used - Gray Used Magwell - Gray - SL8
    HKP-20056
    $9.95
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    $9.95
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  • Used - H&K HK SL8-1 Locking Lever Elbow Spring - HKP-16398
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    HK SL8-1 Locking Lever Spring - Elbow

    H&K Heckler & Koch

    $9.95
    HK SL8-1 Locking Lever Elbow Spring
    HKP-16398
    $9.95
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    $9.95
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  • New - TBR HK MR762 Operator Brass Catcher - Black - HKP-19149 HK MR762 Brass Catcher - Operator Model
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    HK MR762 Brass Catcher - Operator Model

    TBR Tactical Brass Recovery

    $229.95
    Operator Brass Catcher for HK MR762 Operator model for HK MR762 rifle. Slightly different from other AR platform rifles because the HK MR762 has a bit higher rail to bore centerline dimension. This 4 position detent feature allows 180 degrees of motion...
    HKP-19149
    $229.95
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    $229.95
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  • New - HKP MP5 9mm Pistol Build Kit With Flat, Top Rail & Weldment Set - SEF Binary Trigger - HKP-20523
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    HK MP5 Parts Kit - SEF Binary Trigger - Pistol Build - Receiver Flat and Weldment Set - 9mm

    $1,859.95
    MP5 9mm Pistol Build Kit Complete German & USA Made Parts- SEF Binary Trigger Group MP5 9mm parts kit complete with all the parts needed for an MP5 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance parts to be legal as a...
    HKP-20523
    $1,859.95
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    $1,859.95
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  • On Sale
    New - Timney Triggers HK93 .223 2-Stage Trigger Complete - HKP-20512 HK33, HK53, HK93 2-Stage Trigger Group - .223 - Complete
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    HK33, HK53, HK93 2-Stage Trigger Group - .223 - Complete

    Timney Triggers

    Now: $487.95
    Was: $548.95
    Timney Trigger Group for .223 - HK93 SEF Timney trigger group comes completely assembled and ready to drop in to your receiver. Set up with a German ejector lever, new SEF selector lever and a brand new factory German housing for the best trigger group...
    HKP-20512
    Now: $487.95
    Was: $548.95
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    Now: $487.95
    Was: $548.95
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  • Out Of Stock
    New - H&K MP5, 93/53/33, G3/91 (9mm, 5.56/.223, 7.62/.308) 3 Position (0,1,3 Pictogram) Universal Burst Trigger Housing - Clipped & Pinned - HKP-20404 HK MP5, 93/53/33, G3/91 (9mm, 5.56/.223, 7.62/.308) 3 Position (0,1,3 Pictogram) Universal Burst Trigger Housing - Clipped & Pinned

    HK MP5, 93/53/33, G3/91 (9mm, 5.56/.223, 7.62/.308) 3 Position (0,1,3 Pictogram) Universal Burst Trigger Housing - Clipped & Pinned

    H&K Heckler & Koch

    $0.00
    H&K MP5, 93/53/33, G3/91 (9mm, 5.56/.223, 7.62/.308) 3 Position (0,1,3 Pictogram) Universal Burst Trigger Housing - Clipped & Pinned Introducing the new Factory German trigger housing, designed for use in safe, semi, and burst configurations...
    HKP-20404
    $0.00
    Out Of Stock
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    $0.00
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