HK91 / G3 / HK51 Series

HK91 / G3 / HK51 Series

Discover the ultimate collection of parts for your HK G3 and HK 91, designed to enhance precision, reliability, and performance. Featuring G3 Stocks for improved ergonomics, 91 Barrels for superior accuracy, and G3 Triggers for enhanced responsiveness. Our selection also includes 91 Handguards for advanced protection and control, G3 Forearms for optimal handling, and detailed Parts Kits to fully equip your firearm for any scenario. Each component is engineered for flawless compatibility with your HK G3 or HK 91, ensuring your rifle meets the highest standards of operation and craftsmanship.

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  • On Sale
    New - H&K 4 Position Burst To 0,1 Only - Conversion Selector Lever Set - HKP-17996 HK MP5 Selector Lever Conversion Set - 4 Position Burst To 0,1
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    HK MP5 Selector Lever Conversion Set - 4 Position Burst To 0,1

    H&K Heckler & Koch

    Now: $129.95
    Was: $179.95
    HK 4 Position Burst To Semi ONLY Conversion Selector Lever Set - German HK The German HK selector lever set will allow the use to convert the following: 0,1,3,F Trigger packs 0,1,2,F Trigger packs To safe, semi only as far as the way the selector...
    HKP-17996
    Now: $129.95
    Was: $179.95
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    Now: $129.95
    Was: $179.95
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  • On Sale
    HK MP5, G3, PTR, HK93 Push Button for Magazine Catch H&K Heckler & Koch HKP-22325 HK MP5, G3, PTR, HK93 Push Button for Magazine Catch H&K Heckler & Koch HKP-22325
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    HK MP5, G3, HK93 Magazine Catch Push Button- Used

    H&K Heckler & Koch

    Now: $4.95
    Was: $8.95
    H&K MP5, G3, PTR, HK93 Push Button for Magazine Catch - Used   Factory original HK push button replacement part. Limited quantity available.   This is a used part, sold AS-IS, and is not eligible for return.  Compatible...
    HKP-99316
    Now: $4.95
    Was: $8.95
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    Now: $4.95
    Was: $8.95
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  • New - Blitzkrieg PTR Flat Tip Front Sight Gen 2 - Orange - HKP-21103 PTR Flat Tip Front Sight - Gen 2 - Orange
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    PTR Flat Tip Front Sight - Gen 2 - Orange

    Blitzkrieg Components

    $84.95
    Blitzkrieg PTR Flat Tip Front Sight Gen 2 - Orange The Blitzkrieg Gen 2 HK-style front sight delivers a fast and precise aiming point with its conventional flat-tipped post and bright orange stripe. Designed for easy installation, it utilizes a roll pin...
    HKP-21103
    $84.95
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  • New - HKP Single Point Leather Sling - OD Green - HKP-20163 HK Single Point Leather Sling - OD Green
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    HK Single Point Leather Sling - OD Green

    HKP HK Parts

    $49.95
    Single Point Leather Sling - OD Green Our leather sling utilizes two HK style sling hooks to attach to a single mounting point. Designed to replicate the original, out of production, German HK offering. Each sling is handcrafted in the US by a German...
    HKP-20163
    $49.95
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  • Used - H&K German Leather Sling - Well Used with No Loop - HKP-20583 HK German Leather Sling - Well Used with No Loop
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    HK German Leather Sling - Well Used with No Loop

    H&K Heckler & Koch

    $39.80
    Original Surplus German HK Leather - Well Used with No Loop Pulled from German military G3 rifles. Last of the remaining units, get them before they are gone. Compatible With: HK91 G3 PTR91 & CETMEHK93 33 53HK94 MP5HK clones Other custom...
    HKP-20583
    $39.80
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    $39.80
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  • New - Solar Tactical HK MP5, HK 93, HK 91 Grip Wrap For SEF Contoured Lower - HKP-19071 HK MP5, HK33, HK91 Grip Wrap for SEF Contoured Lowers
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    HK MP5, HK33, HK91 Grip Wrap for SEF Contoured Lowers

    Solar Tactical

    $79.95
    Solar Tactical HK MP5, HK 93, HK 91 Grip Wrap For SEF Contoured Lower Featureless Kydex grip wrap for use with detachable magazines. Prevents a wrap around style pistol grip. Allows the use of the factory magazine release and detachable magazines over...
    HKP-19071
    $79.95
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    $79.95
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  • Used - HK G3 Incomplete Backplate - Painted - HKP-21541 HK G3 Incomplete Backplate - Painted
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    HK G3 Incomplete Backplate - Painted

    H&K Heckler & Koch

    $29.95
    HK G3 Incomplete Backplate -  Factory German G3 refinished backplate. A great replacement or spare to have around to replace your broken or worn out backplates.  Please note you will need two rivets, nylon ring, recoil spring in order to...
    HKP-21541
    $29.95
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  • New - HKP PTR HK91 / PTR-91 Bolt Head Complete - HKP-20140 HK91, PTR-91 Bolt Head Complete
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    HK91, PTR-91 Bolt Head Complete

    PTR

    $179.95
    HKP PTR HK91 / PTR-91 Bolt Head Complete New PTR bolt head complete with extractor, extractor spring, roller retainer plate, pair of 8mm rollers. Ready to drop in to replace your worn out bolt head. Bolt head counts as 1 US made compliance part for the...
    HKP-20140
    $179.95
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  • Out Of Stock
    Used - H&K 91/G3 (7.62x51/.308) Slimline Forearm - Black - Used Excellent Condition - HKP-18317 HK91, G3 Handguard - Slimline Style - Used Excellent Condition

    HK91, G3 Handguard - Slimline Style - Used Excellent Condition

    H&K Heckler & Koch

    $0.00
    Used Authentic German Military Surplus G3 Black Slim Line Forearm With Heat Shield Used in excellent shape. For the money, these are a nice addition to the collection. Each item will fit all full forearm length HK 91, G3, PTR style firearms. Used...
    HKP-18317
    $0.00
    Out Of Stock
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    $0.00
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  • New - HKP HK 91/G3 (7.62x51/.308) Key Mod Handguard - HKP-17178 HK91, G3 Key Mod Handguard
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    HK91, G3 Key Mod Handguard

    HKP HK Parts

    $149.95
    HK G3, HK91 & PTR Low Profile Key Mod Forearm The KeyMod tactical hand guard easily installs on your firearm with minimal effort and locks up solid. No fitting required. Designed from the ground up by roller lock & HK enthusiasts with your...
    HKP-17178
    $149.95
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  • New - H&K HK G3/HK 91 Muzzle Protector Cap - HKP-21892 HK91, G3 Muzzle Protector Cap
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    HK91, G3 Muzzle Protector Cap

    H&K Heckler & Koch

    $8.95
    Heckler and Koch Muzzle Protector Cap for your HK91 and HK G3  Genuine HK muzzle cap designed to keep debris, water, etc., from entering the barrel. The cap can be removed by hand or when the first round is fired with the cap installed. Standard...
    HKP-21892
    $8.95
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  • Used - H&K HK G3 Early Style Backplate with Recoil Rod - Used - HKP-19556 HK G3 Early Style Backplate with Recoil Rod - Used
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    HK G3 Early Style Backplate with Recoil Rod - Used

    H&K Heckler & Koch

    $24.95
    G3 - Early Production CETME, G3 HK91 Backplate - Used  
    HKP-19556
    $24.95
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    $24.95
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