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 Round Count Burst Wheel for 4 Position Trigger Packs - HKP-01639
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    HK 3 Round Count Burst Wheel for 4 Position Trigger Packs

    H&K Heckler & Koch

    $127.95
    H&K 3 Round Count Burst Wheel For 4 Position Trigger Packs  
    HKP-01639
    $127.95
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  • On Sale
    New - HKP HK 91/G3/MP5 Ambidextrous Selector Lever - Right Side - Low Profile - HKP-17898 HK91, G3, MP5 Ambidextrous Selector Lever - Right Side - Low Profile
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    HK91, G3, MP5 Ambidextrous Selector Lever - Right Side - Low Profile

    HKP HK Parts

    Now: $22.95
    Was: $39.95
    Low Profile, No Contact - Ambidextrous Selector Lever - Right Side This is the right side selector of the ambidextrous trigger packs that is low profile and does not interfere with the hand when the selector lever is in the fire, burst and F/A...
    HKP-17898
    Now: $22.95
    Was: $39.95
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  • Used - Friction Sear-USED For SEF, Navy Trigger Packs - HKP-16197 HK MP5, HK33, HK53, HK93, HK91, G3 Catch with Roller for SEF, Navy Trigger Packs - USED
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    HK MP5, HK33, HK53, HK93, HK91, G3 Catch with Roller for SEF, Navy Trigger Packs - USED

    H&K Heckler & Koch

    $4.49
    Friction Sear-USED For SEF, Navy Trigger Packs hk335393, 91, G3,  Used in excellent condition, HK German Friction Sear for SEF & Navy trigger packs. This item is also referred to as the catch with roller but more commonly called a sear.
    HKP-16197
    $4.49
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  • New - HKP HK G3,91,PTR, 93,33 & MP5, 94 Pinned Hammer Strut - HKP-20315 HK MP5, HK90 Series Pinned Hammer Strut
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    HK MP5, HK90 Series Pinned Hammer Strut

    HKP HK Parts

    $13.95
    HKP HK G3,91,PTR, 93,33 & MP5, 94 Pinned Hammer Strut New USA hammer strut for 90 series rifles and pistols. A perfect spare to have on hand. This is a pinned hammer spring shank. Perfect for your HK project or rebuild. Compatible With: HK trigger...
    HKP-20315
    $13.95
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  • New - H&K -6 Roller For Bolt Head 7.94mm - Under-sized - HKP-00342 HK -6 Roller For Bolt Head 7.94mm - Under-sized
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    HK -6 Roller For Bolt Head 7.94mm - Under-sized

    H&K Heckler & Koch

    $27.95
    H&K -6 Roller For Bolt Head 7.94mm - Under-sized New HK German -6 roller that measures 7.94mm. For use with all HK 90 series firearms.  Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way...
    HKP-00342
    $27.95
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  • New - H&K Grip Screw - HKP-01725
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    HK MP5, SP89, HK91, HK93, HK94 Grip Screw

    H&K Heckler & Koch

    $8.95
    H&K Grip Screw New HK grip screw that is now out of production. Great for a spare. Compatible With: HK91 HK93 HK94 SP89
    HKP-01725
    $8.95
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  • Used - H&K 91/G3 (7.62x51/.308) Complete F/A Lower (SEF) - Black - HKP-17653 HK91, G3 Complete F/A Lower (SEF)
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    HK91, G3 Complete F/A Lower (SEF)

    H&K Heckler & Koch

    $369.95
    German G3 Surplus Lower Complete - Black Grip HK G3 SEF Steel Lower Complete. Each lower includes full auto trigger pack complete, selector lever, green grip, metal SEF grip frame, grip screw with screw washer. All of these parts are installed and ready...
    HKP-17653
    $369.95
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  • New - H&K (7.62x51/.308) Cleaning Kit - HKP-01549 HK Firearm Cleaning Kit - 7.62x51 / .308
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    HK Firearm Cleaning Kit - 7.62x51 / .308

    HKP HK Parts / Heckler & Koch

    $89.95
    H&K (7.62x51/.308) Cleaning Kit New Factory HK German 91, G3, PTR, or other HK .308 cleaning kit for all .308 HK's or clones.  Includes: Cleaning rod for short and long barrels Adapter for cleaning tools 8-32 Patch holder Bore brush Chamber...
    HKP-01549
    $89.95
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  • New - H&K Ambidextrous Sling Pin Locking Knob - HKP-01042
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    HK Ambidextrous Sling Pin Locking Knob

    H&K Heckler & Koch

    $11.95
    New HK German Ambidextrous Sling Pin Locking Knob These are common replacement items, they can become loose as the O-ring wears and falls off. Be sure to order extra O-rings to avoid losing the locking nut. This is a common replacement part for those...
    HKP-01042
    $11.95
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  • Out Of Stock
    New - B&T Ambidextrous Sling Pin - Small - HKP-16886 B&T Ambidextrous Sling Pin - Small

    B&T Ambidextrous Sling Pin - Small

    B&T Brugger & Thomet

    $58.95
    B&T Ambidextrous Sling Pin - Small Replaces the small push pin to allow a sling attachment point on either the left or right side of the firearm. Each measures: 6x29mm with rubber o-ring and net screw.
    HKP-16886
    $58.95
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  • New - Blitzkrieg PTR Chevron Front Sight Gen 2 - Orange - HKP-20453 PTR Chevron Front Sight - Gen 2 - Orange
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    PTR Chevron Front Sight - Gen 2 - Orange

    Blitzkrieg Components

    $56.99
    Blitzkrieg PTR Chevron Front Sight Gen 2 - Orange The Blitzkrieg Gen 2 HK-style front sight provides a bold, fast sight picture with a bright orange chevron for quick target acquisition. The sight face is moved forward for enhanced...
    HKP-20453
    $56.99
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  • New - MI HK G3/91/PTR M-LOK Forearm - Black - HKP-18439 HK91, G3, PTR Handguard - M-LOK
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    HK91, G3, PTR Handguard - M-LOK

    MI Midwest Industries

    $189.95
    MI HK G3/91/PTR M-LOK Forearm Fits the HK G3, 91 lengths for firearms to include the full-length PTR models that use a G3/91 full-length forearm. May fit some CETME models such as the C308 with fitting required. Made in the USA, 922r...
    HKP-18439
    $189.95
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