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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  • Refurbished - HK G3/91 (7.62x51/.308) 15 Round Steel Magazine - Refinished - HKP-21922 HK91, G3 Magazine - 15 Round - Steel - Refinished
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    HK91, G3 Magazine - 15 Round - Steel - Refinished

    H&K Heckler & Koch

    $84.95
    HK Heckler and Koch 15 Round Steel Magazine - Refinished for HK G3 and HK91 (7.62x51/.308) HK G3 factory steel 15-round magazine, expertly restored to its former glory. This magazine has been meticulously refinished inside and out, featuring a polished...
    HKP-21922
    $84.95
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  • Used - EBO HK G3, 91, PTR Bolt Head Complete - Used - HKP-21903 HK91, G3, PTR Bolt Head - Complete - Used
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    HK91, G3, PTR Bolt Head - Complete - Used

    EBO

    $99.95
    EBO HK G3 & HK 91 & PTR Bolt Head Complete - Used Greek HK Contract Date Coded EBO bolt head is manufactured in Greece by Hellenic Arms Industry, utilizing HK tooling and prints. Since the 1980s, it has proven to be one of the best upgrades for...
    HKP-21903
    $99.95
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    $99.95
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  • New - H&K A3 Stock Release Lever Rebuild Kit - HKP-21851
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    HK A3 Buttstock Release Lever Rebuild Kit

    H&K Heckler & Koch

    $14.95
    H&K A3 Stock Release Lever Rebuild Kit This A3 collapsible stock rebuild kit is designed for the release lever on MP5, SP5, 93/53/33, and G3/91 collapsible stocks.  With A3 stocks becoming more expensive it's a great idea to keep this kit on...
    HKP-21851
    $14.95
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    $14.95
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  • HK G3K, HK33K Flash Hider - 4 Prong - Open
HK G3K, HK33K Flash Hider - 4 Prong - Open
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    HK G3K, HK33K Flash Hider - 4 Prong - Open

    RCM

    $187.95
    RCM HK G3K/HK33K Flash Hider - 4 Prong - Open The RCM G3K and HK33K 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 922r...
    HKP-21599
    $187.95
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  • New - PTR PDW (7.62x39) & (7.62x51/.308) Semi-Auto Bolt Carrier - HKP-14140 PTR PDW Bolt Carrier - Semi Auto - 7.62x39 and 7.62x51
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    PTR PDW Bolt Carrier - Semi Auto - 7.62x39 and 7.62x51

    PTR

    $229.95
    PTR PDW Semi Auto Carrier - US Made Semi-automatic bolt carrier manufactured by PTR in the United States using HK-pattern specifications. Designed for PTR PDW platforms and counts as one U.S.-made 922r compliant component. Compatible with both 7.62x51mm,...
    HKP-14140
    $229.95
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    $229.95
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  • New - PTR PDW (7.62x51/.308) 9 inch Barrel - HKP-02788 PTR PDW Barrel - 7.62 / .308 - 9" - SBR
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    PTR PDW Barrel - 7.62 / .308 - 9" - SBR

    PTR

    $189.99
    PTR PDW .308 Pistol or SBR Barrel- USA This part comes new in the white, never installed, and ready for the HK project. Features: Just under 9" inches long 1:10 twist U.S. made barrel counts as one 922r compliant part Please Note: Front sight towers...
    HKP-02788
    $189.99
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  • Out Of Stock
    New - HKP PTR-32 (7.62x39) Complete Bolt Group - PDW - HKP-17387 HK PTR-32 Bolt Group - Complete - PDW

    HK PTR-32 Bolt Group - Complete - PDW

    HKP HK Parts

    $379.95
    US Made PTR 32 PDW Bolt Group Complete Semi-Auto. Factory correct bolt head and locking piece for use in the PTR 32 chambered in 7.62X39. Brand new May 2015 manufacture. This is the correct bolt for all PTR PDW with 8" barrels.
    HKP-17387
    $379.95
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    $379.95
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  • New - H&K G3/91/PTR (7.62x51/.308) 4 Position (0,1,3,F Pictogram) Double Tang Trigger Housing- Clipped & Pinned - HKP-01515 HK91, G3 Trigger Housing - Double Tang 4 Position 0,1,3,F Pictogram - Clipped and Pinned
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    HK91, G3 Trigger Housing - Double Tang 4 Position 0,1,3,F Pictogram - Clipped and Pinned

    H&K Heckler & Koch

    $534.95
    HK Heckler and Koch 4 Position 0,1,3,F Pictogram Double Tang Trigger Housing, Clipped and Pinned for HK G3 and HK91 and PTR  This ambidextrous HK trigger housing features a 4 position pictogram 0,1,3,F and is set up in a semi-auto clipped and pinned...
    HKP-01515
    $534.95
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    $534.95
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  • On Sale
    HK91, G3, PTR Magazine - 5 Round - Black - USED HK91, G3, PTR Magazine - 5 Round - Black - USED
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    HK91, G3, PTR Magazine - 5 Round - Black - USED

    HKP HK Parts

    Now: $38.95
    Was: $79.95
    HK91, G3, PTR Magazine - 5 Round - Black - USED ONLY 2 UNITS AVAILABLE - VARYING CONDITION SHOWN - SOLD INDIVIDUALLY PITTING USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. 5 Round German Steel 308 Magazine...
    HKP-16250-USED
    Now: $38.95
    Was: $79.95
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    Now: $38.95
    Was: $79.95
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  • On Sale
    HK MP5, 90 Series, AP5 Trigger -  BLEMISHED HK MP5, 90 Series, AP5 Trigger -  BLEMISHED
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    HK MP5, 90 Series, AP5 Trigger - BLEMISHED

    MKE

    Now: $22.95
    Was: $34.95
    MKE AP5, HK MP5, 90 Series Trigger - BLEMISHED VARYING CONDITION SHOWN - SOLD INDIVIDUALLY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Steel trigger...
    HKP-22519-B
    Now: $22.95
    Was: $34.95
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    Now: $22.95
    Was: $34.95
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  • Out Of Stock
    On Sale
    HK Linear Compensator - Threaded 5/8x24 RH - (5.56 & .308) - USED HK Linear Compensator - Threaded 5/8x24 RH - (5.56 & .308) - USED

    HK Linear Compensator - Threaded 5/8x24 RH - (5.56 & .308) - USED

    HKP HK Parts

    Now: $65.95
    Was: $149.95
    HK Linear Compensator - Threaded 5/8x24 RH - (5.56 & .308) - USED ONLY 1 UNIT AVAILABLE - AS PICTURED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Linear compensators give you the best of both...
    HKP-19338-USED
    Now: $65.95
    Was: $149.95
    Out Of Stock
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    Now: $65.95
    Was: $149.95
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  • HK91, G3 Retractable Buttstock Retaining Ring - 19x1.2mm
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    HK91, G3 Retractable Buttstock Retaining Ring - 19x1.2mm

    H&K Heckler & Koch

    $12.95
    HK91, G3 19x1.2mm Retaining Ring for A3 Retractable Buttstocks This 19x1.2 retaining ring (circlip-style) is used in the G3 and HK91 A3 retractable buttstock assembly to help retain the locking components in place for proper fit and function. Compatible...
    HKP-22482
    $12.95
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    $12.95
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