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
    New - Ergo Tactical Grip For MR556/MR762-Black - HKP-17131 Ergo Tactical Grip For MR556/MR762-Black Ergo HKP-17131
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    HK416, MR556, HK417, MR762 Tactical Grip

    Ergo

    Now: $49.46
    Was: $54.95
    Ergo Grip PSG1 Style Grip For MR556 & MR762 Just in and a great upgrade if you want the PSG1 style grip frame for your HK MR556, MR762 & HK416, HK417, G28 firearm. The ergonomically enhanced ERGO Tactical Deluxe Grips fits all AR15, M16 and MR...
    Now: $49.46
    Was: $54.95
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  • On Sale
    New - H&K HK MR556/416 Back Plate w/QD Attachment - HKP-22205 HK416, MR556 Back Plate - QD Attachment
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    HK416, MR556 Back Plate - QD Attachment

    H&K Heckler & Koch

    Now: $58.46
    Was: $64.95
    H&K HK MR556/416 Back Plate w/QD Attachment Factory HK back plate with QD socket for the HK MR556 and 416 A1/A4 models.  Compatible With: HK MR556/HK 416 (A1 and A4)
    Now: $58.46
    Was: $64.95
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  • On Sale
    New - AC-Unity HK93 Wide Handguard - Short - HKP-21638 HK93 Wide Handguard - Short
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    HK93 Wide Handguard - Short

    AC-Unity

    Now: $71.06
    Was: $78.95
    AC-Unity HK93 Wide Handguard - Short AC-Unity wide/short handguard, specifically designed for the HK33, HK93,HK34 and G3K. This handguard is also the perfect fit for PTR rifles utilizing the shorter HK93 length handguards. The perfect option to match up...
    Now: $71.06
    Was: $78.95
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  • On Sale
    New - HKP - HK MP5 .22LR Brace/Stock Adapter - HKP-21543 HK MP5 Stock or Brace Adapter - .22LR
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    HK MP5 Stock or Brace Adapter - .22LR

    HKP HK Parts

    Now: $79.96
    Was: $99.95
    HKP - HK MP5 .22LR Brace/Stock Adapter Expertly crafted from a solid billet of CNC machined aircraft grade aluminum with QD sling attachment points. Buffered with factory correct “H” buffers to ensure maximum protection for your valuable...
    Now: $79.96
    Was: $99.95
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  • New - H&K HK G36, HK G36K, HK G36C Complete Bolt Head - HKP-00636 HK G36, G36K, G36C Bolt Head - Complete - Rare
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    HK G36, G36K, G36C Bolt Head - Complete - Rare

    H&K Heckler & Koch

    $599.95
    Heckler and Koch HK G36, G36K, G36C Complete Bolt Head Rare new German HK bolt head for the G36, G36K, and G36C. This is the correct factory bolt head needed when converting the SL8 to use double-stack G36 magazines. The assembly comes complete with all...
    $599.95
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  • On Sale
    New - HK MP5 QD End Cap with Buffer - Black - HKP-20118 HK MP5 QD End Cap with Buffer
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    HK MP5 QD End Cap with Buffer

    HKP HK Parts

    Now: $47.96
    Was: $99.95
    Quick Detach Steel End Cap With Replaceable Rubber Buffer - HK MP5 With this MP5 QD end cap upgrade you will get a heavier buffer to internally protect your firearm and keep your bolt carrier in tip top condition for years to come. Machined aircraft...
    Now: $47.96
    Was: $99.95
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  • On Sale
    New - POF HK G3, 91, PTR SlimLine Hand Guard - HKP-19560 HK G3, HK91, PTR Handguard - Slimline Style
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    HK G3, HK91, PTR Handguard - Slimline Style

    POF

    Now: $17.95
    Was: $19.95
    POF Slimline HK91, G3, PTR Forearm - POF New POF HK-contract slimline standard-length handguard full size HK G3, 91, PTR rifles.  Does not feature internal heat shield. Compatible With: HK91 HK G3 PTR-91 CETME (modification may be needed) Other HK ...
    Now: $17.95
    Was: $19.95
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  • On Sale
    New - HKP HK 416/COLT M4 .22 20 Round Magazine Spring - HKP-14410
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    HK416, COLT M4 Magazine Spring - .22LR - 20 Round

    HKP HK Parts

    Now: $1.95
    Was: $3.95
    HKP 20 Round HK416 .22LR and Colt M4 .22LR Magazine Spring A good supply of spare mag springs is a must. These are ideal to have on hand as the spring can become damaged or worn out. New production mag spring for your Umarex HK416 & Colt 20 round 22...
    Now: $1.95
    Was: $3.95
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  • Out Of Stock
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    New - HKP 10 Round MP5 40/10 Magazine Block - HKP-18170 MP5, MP5K Magazine Block - 10mm / .40 S&W - 10 to 30 Round Conversion

    MP5, MP5K Magazine Block - 10mm / .40 S&W - 10 to 30 Round Conversion

    HKP HK Parts

    Now: $7.96
    Was: $9.95
    HKP 10 Round MP5 40/10 Magazine Block MP5 10/30 mag block plug. This is designed to use on the HK MP5 40/10 30 round magazine. Very easy to install & use.  Compatible With: MP5 .40, MP5 10mm Clones or other custom builds
    Now: $7.96
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    On Sale
    New - H&K HK MR556/MR762/416 Fire Control Detent Stop Pin - HKP-15272

    HK416, MR556, MR762 Fire Control Detent Stop Pin

    H&K Heckler & Koch

    Now: $18.86
    Was: $20.95
    H&K HK MR556/MR762/416 Fire Control Detent Stop Pin HK German manufacture. Compatible With: HK MR556 HK416 HK MR762
    Now: $18.86
    Was: $20.95
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  • On Sale
    New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Bolt Catch Pin - HKP-16517
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    HK UMP/USC (.40 S&W/.45 ACP/9mm) Bolt Catch Pin

    H&K Heckler & Koch

    Now: $5.36
    Was: $5.95
    H&K UMP/USC (.40 S&W/.45 ACP/9mm) Bolt Catch Pin
    Now: $5.36
    Was: $5.95
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  • Out Of Stock
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    New - PTR HK 91/G3 (7.62x51/.308) Extractor - HKP-16222 HK91, G3 Extractor

    HK91, G3 Extractor

    PTR

    Now: $27.89
    Was: $30.99
    PTR HK 91/G3 (7.62x51/.308) Extractor  US Made by PTR. Made from stainless steel. Compatible With: HK G3 PTR 7.62 X 51mm models
    Now: $27.89
    Was: $30.99
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