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 UMP/USC (.40 S&W/.45 ACP/9mm) Rear Sight Complete - HKP-16634 HK UMP, USC Rear Sight, Complete
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    HK UMP, USC Rear Sight, Complete

    H&K Heckler & Koch

    $45.95
    HK Heckler and Koch Complete Rear Sight for USC and UMP  Includes: Leaf spring  Rear sight  Compression spring for rear sight  Windage adjustment screw  Rear sight support  Compatible With: USC UMP
    HKP-16634
    $45.95
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    $45.95
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  • New - HK 91/G3 (7.62x51/.308) Bolt Head Complete - US Made - HKP-00839 HK91, G3 Bolt Head Complete - US Made
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    HK91, G3 Bolt Head Complete - US Made

    USA

    $149.95
    Bolt Head - Complete This item is a complete bolt head using a combination of new HK German and New US-made parts. This part counts as 1 US-made compliant part for the 922r compliance. Compatible With: HK 91 HK G3 PTR-91 SAR3/8 Other HK .308 Clones or...
    HKP-00839
    $149.95
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  • Used - H&K 91/G3 (7.62x51/.308) Slimline Forearm - Jungle Green - Used Excellent - HKP-19042 HK91, G3 Handguard - Slimline Style - Jungle Green - Used Excellent
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    HK91, G3 Handguard - Slimline Style - Jungle Green - Used Excellent

    H&K Heckler & Koch

    $29.95
    H&K 91/G3 (7.62x51/.308) Slimline Forearm - Jungle Green - Used Excellent Used in excellent shape. These are a nice addition to the collection. Compatible With: All full forearm length HK 91, G3, PTR style firearms
    HKP-19042
    $29.95
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  • New - HKP MP5 40/10 30 Round Magazine Body - HKP-16508 HK MP5, MP5K Magazine Body - .40 S&W, 10mm - 30 Round - Straight
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    HK MP5, MP5K Magazine Body - .40 S&W, 10mm - 30 Round - Straight

    HKP HK Parts

    $29.95
    HKP MP5 40/10 30 Round Magazine Body New US Made MP5 40/10 30 Round Magazine Housing Body. Each magazine body comes black in color. Each body counts as one US made compliant part and is a great item to have on hand to replace other junk mag bodies or...
    HKP-16508
    $29.95
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  • New - HKP MP5SD 9mm Front End Kit - HKP-02399
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    HK MP5SD 9mm Front End Kit

    HKP HK Parts

    $1,199.95
    HK MP5SD Front End Build Kit  The HK Parts MP5SD front end kit includes everything required (except suppressor) to build an MP5SD front end including the best US and German components available. Each kit counts as 4 922r USA-made parts toward the...
    HKP-02399
    $1,199.95
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    $1,199.95
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  • New - Magpul RSA - Rail Sling Attachment - HKP-02423 Magpul RSA - Rail Sling Attachment Magpul HKP-02423
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    Magpul RSA - Rail Sling Attachment

    Magpul

    $29.95
    Magpul RSA - Rail Sling Attachment Attaches to Picatinny rails for an additional point of attachment for slings.
    HKP-02423
    $29.95
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  • New - Strike Industries QD & Sling Hook Sling Attachement - HKP-17381
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    QD and Sling Hook Sling Attachement

    Strike Industries

    $29.95
    Ambush QD Sling Loop The Strike Industries Ambush low profile sling loop is the lowest profile sling loop designed for the MIL-STD-1913 rail. Made of solid steel, its unique locking bar design system allows for it to be lightweight and durable. Because...
    HKP-17381
    $29.95
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  • HKP Cleaning Brush for HK91 and HK G3 Barrel Flutes 7.62x51 / .308 HK91, G3 Barrel Flute Cleaning Brush - 7.62x51 / .308
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    HK91, G3 Barrel Flute Cleaning Brush - 7.62x51 / .308

    HKP HK Parts

    $19.95
    HKP Cleaning Brush for HK91 and HK G3 Barrel Flutes 7.62x51 / .308 This brush is a must-have for cleaning the chamber flutes on a HK G3 or HK91-style firearm. If the flutes become clogged or dirty, the firearm will cease to extract properly and render...
    HKP-22317
    $19.95
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  • Out Of Stock
    HK416, MR556, HK417, MR762 Selector Lever - Ambi - Right

    HK416, MR556, HK417, MR762 Selector Lever - Ambi - Right

    H&K Heckler & Koch

    $11.95
    Heckler & Koch HK416 Ambi Safety Selector Lever Factory HK polymer right side selector lever. Compatible With: HK416 A1/A3 HK MR556 A1 HK417 HK MR762 A1
    HKP-22309
    $11.95
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  • RCM HK SP5K Spec Suppressed Bolt Group RCM HKP-22277 RCM HK SP5K Spec Suppressed Bolt Group RCM HKP-22277
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    HK SP5K Bolt Group - Suppressed - Full Auto - Spec

    RCM

    $409.95
    RCM HK SP5K Spec Suppressed Bolt Group- Full Auto The RCM SP5K Suppressed bolt group is expertly engineered for operating in full auto while suppressed. Although designed as a full-auto bolt group, it also functions perfectly in semi-auto receivers. This...
    HKP-22323
    $409.95
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    $409.95
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  • New - H&K HK MR556/416 Handguard Rail System Screw - HKP-02717 HK416, MR556, HK417, MR762 Handguard Locking Screw - A1 Style
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    HK416, MR556, HK417, MR762 Handguard Locking Screw - A1 Style

    H&K Heckler & Koch

    $24.95
    Heckler and Koch A1 Handguard Rail System Screw for HK416, HK MR556, HK417, and HK MR762 Factory HK handguard rail screw for A1 handguards.   Compatible With: HK416 A1, MR556 A1 HK417 A1, MR762 A1 (2 required per handguard)
    HKP-02717
    $24.95
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  • Out Of Stock
    New - GSG9 HK G36 (5.56/.223) Incomplete Bolt Head - HKP-00802 HK G36 Bolt Head, Incomplete

    HK G36 Bolt Head, Incomplete

    GSG9

    $225.95
    G36 Incomplete Bolt Head - USA G36 bolt head allows the use of double stack magazines in your SL8 conversion to high-capacity G36, Magpul, or AR15 magazines.   
    HKP-00802
    $225.95
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