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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  • New - H&K 3 Position Ambidextrous Selector Lever - BURST ONLY - HKP-01294 HK MP5, HK94 Selector Lever - Burst Ambi 3 position - Right Side ONLY - BURST ONLY
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    HK MP5, HK94 Selector Lever - Burst Ambi 3 position - Right Side ONLY - BURST ONLY

    H&K Heckler & Koch

    $99.47
    H&K 3 Position Ambidextrous Selector Lever - BURST ONLY This selector lever will convert any 4 position 0, 1, 2, F or 0, 1, 3, F trigger group to non-full auto BURST capability only, making the rotation 3 position instead of 4 position. This selector...
    HKP-01294
    $99.47
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  • Out Of Stock
    On Sale
    New - H&K Burst Hammer For Burst Trigger Groups - HKP-00851 HK MP5, G3, HK33 Hammer with Pressure Shank for Burst Trigger Groups

    HK MP5, G3, HK33 Hammer with Pressure Shank for Burst Trigger Groups

    H&K Heckler & Koch

    Now: $147.95
    Was: $349.95
    2 or 3-Round Burst Hammer with Pressure Shank HK factory burst trigger pack hammer and pressure shank.  Compatible with 2 and 3-round burst trigger packs: (0,1,3,F), (0,1,2,F), (0,1,3), (0,1,2). Compatible With: HK MP5, MP5K HK SP5, SP5K HK91,...
    HKP-00851
    Now: $147.95
    Was: $349.95
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    Now: $147.95
    Was: $349.95
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  • HK91, G3, HK33, HK93 Bayonet Adapter Replacement Kit - Turkish Contract HK91, G3, HK33, HK93 Bayonet Adapter Replacement Kit - Turkish Contract
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    HK91, G3, HK33, HK93 Bayonet Adapter Replacement Kit - Turkish Contract

    Other

    $14.95
    Turkish Contract Bayonet Adapter Replacement Kit for HK91, HK G3, HK33, HK93 Turkish contract replacement hardware kit for early-style bayonet adapters. Intended for use with pre-ban pattern adapters on compatible HK roller-delayed rifle platforms...
    HKP-22518
    $14.95
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  • WOOX M-LOK Rail Covers - Teardrop - GEN2 WOOX M-LOK Rail Covers - Teardrop - GEN2
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    WOOX M-LOK Rail Covers - Teardrop - GEN2

    WOOX

    $58.95 - $78.95
    WOOX GEN2 Teardrop M-LOK Rail Covers The teardrop M-LOK rail covers upgrade any M-LOK or KeyMod handguard with a warmer feel, more traction, and added heat protection, while bringing that signature wood look to your build. The GEN2 Teardrop pattern uses...
    HKP-22462-M
    $58.95 - $78.95
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  • Compact Vertical Foregrip With Hand Stop - Picatinny Compact Vertical Foregrip With Hand Stop - Picatinny
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    Compact Vertical Foregrip With Hand Stop - Picatinny

    JMK

    $98.95
    Compact Vertical Foregrip with Hand stop - Picatinny The JMK Vertical Foregrips are ideally suited for applications with restricted space. All grips are precision-machined from black walnut and complemented by a 6061 aircraft-grade aluminum handstop...
    HKP-22411-M
    $98.95
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  • Compact Vertical Foregrip with Hand stop - M-LOK Compact Vertical Foregrip with Hand stop - M-LOK
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    Compact Vertical Foregrip with Hand stop - M-LOK

    JMK

    $88.95
    Compact Vertical Foregrip with Hand stop - M-LOK The JMK Vertical Foregrips are ideally suited for applications with restricted space. Equipped with a rapid, straightforward M-LOK attachment system, it can be mounted on any configuration with an M-LOK...
    HKP-22406-M
    $88.95
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    $88.95
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  • HK91, G3 Backplate Assembly - Used FMP HK CONTRACT HKP-22374-USED HK91, G3 Backplate Assembly - Used FMP HK CONTRACT HKP-22374-USED
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    HK91, G3 Backplate Assembly - Surplus

    FMP HK CONTRACT

    $14.95
    FMP HK91, G3 Backplate Assembly - Used/Surplus G3 surplus backplate assembly manufactured by FMP on HK tooling. Compatible With: HK G3, HK91
    HKP-22374
    $14.95
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  • Used - H&K 91/G3 (7.62x51/.308) A3 Retractable Stock - New Old Stock - HKP-22104 HK91, G3 A3 Retractable Buttstock - New Old Stock
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    HK91, G3 A3 Retractable Buttstock - New Old Stock

    H&K Heckler & Koch

    $1,345.95
    Heckler and Koch HK91, G3 A3 Retractable Stock - New Old Stock Genuine HK A3 retractable stock the HK91 or G3. These are original HK production units that have been out of manufacture for years, making remaining NOS increasingly rare. Compatible...
    HKP-22104
    $1,345.95
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    $1,345.95
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  • HK G3K, HK33 Flash Hider - 4 Prong Enclosed
HK G3K, HK33 Flash Hider - 4 Prong Enclosed
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    HK G3K, HK33 Flash Hider - 4 Prong Enclosed

    RCM

    $187.95
    RCM HK G3K & HK33 Flash Hider - 4 Prong - Enclosed End The RCM G3K flash hider can be welded to a 12.69" barrel to achieve a non-SBR OAL of 16 plus inches or add to any other configuration. Made in the US from ordnance grade steel and counts as 1...
    HKP-21598
    $187.95
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  • Out Of Stock
    New - B&T HK 417/G36K Flash Hider - HKP-21520 HK416, G3, G36 Flash Hider - 15x1 RH - Rotex Interface - B&T

    HK416, G3, G36 Flash Hider - 15x1 RH - Rotex Interface - B&T

    B&T Brugger & Thomet

    $144.99
    B&T Flash Hider with Interface for Rotex III/V/VA Swiss-made flash hider compatible with NATO A2 suppressor mounting HUB's. Specifications: Made in Switzerland Threaded M15x1 RH NATO spec Does not include face shims Compatible With: HK416,...
    HKP-21520
    $144.99
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    $144.99
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  • Used - H&K 91/G3 (7.62x51/.308) Navy Style Trigger Group (SEF) - Used Good - HKP-00930 HK91, G3 Navy Style Trigger Group (SEF) - Used Good
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    HK91, G3 Navy Style Trigger Group (SEF) - Used Good

    H&K Heckler & Koch

    $354.95
    H&K 91/G3 (7.62x51/.308) Navy Style Trigger Group (SEF) - Used Good These are pulled from German military HK G3 rifles. These work great as spares or for collectible items. These are used but in good shape overall. Includes: SEF Black Polymer...
    HKP-00930
    $354.95
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    $354.95
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  • On Sale
    New - AIM HK 91 Carbine Length Handguard - Keymod - HKP-18178 HK91 Handguard - Carbine Length - KeyMod
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    HK91 Handguard - Carbine Length - KeyMod

    AIM

    Now: $48.95
    Was: $84.95
    AIM CARBINE LENGTH KeyMod HANDGUARD for HK91 This sleek streamlined design is an ultra-low-profile handguard with generous mounting space to accept all KeyMod accessories.  Compatible With: Carbine length variants only. Specifications: Black...
    HKP-18178
    Now: $48.95
    Was: $84.95
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    Was: $84.95
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