Bolt Carrier Groups

Bolt Carrier Groups

Discover top-quality Heckler and Koch bolt carrier groups at HK Parts, including the HK MP5 bolt carrier, HK G3 bolt carrier, and HK93 bolt carrier. Explore our selection of full auto bolt carriers, enhanced bolt carriers, and tungsten-filled bolt carriers for models like the HK416, HK91, and HK MR556. Ensure reliability with factory HK bolt carriers and US-made bolt carriers. Shop now for chrome-lined bolt carriers, firing pin assemblies, and complete bolt heads to maintain 922r compliance and superior performance.

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    New - H&K G36/SL8 (5.56/.223) Firing Pin Retaining Pin - HKP-02469 HK G36, SL8 Retaining Pin - Firing Pin
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    HK G36, SL8 Retaining Pin - Firing Pin

    H&K Heckler & Koch

    Now: $9.86
    Was: $10.95
    H&K G36/SL8 (5.56/.223) Firing Pin Retaining Pin Compatible With: HK G36 HK SL8
    Now: $9.86
    Was: $10.95
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    New - H&K G36/SL8 (5.56/.223) Bolt Catch Spring - HKP-01861

    HK G36, SL8 Bolt Catch Spring

    H&K Heckler & Koch

    Now: $8.96
    Was: $9.95
    HK German G36 & SL8 Bolt Catch Spring  
    Now: $8.96
    Was: $9.95
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  • New - H&K 23E/13E Factory German Firing Pin - HKP-00820
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    HK23E, HK13E Firing Pin

    H&K Heckler & Koch

    $109.95
    H&K 23E/13E (5.56/.223) Factory German Firing Pin New HK23E & HK13E factory German firing pin. These firing pins are no longer in production from HK.  We have a limited number available and once they are gone, they are gone for good...
    $109.95
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    HK417, MR762 Upper Receiver Rod Tool HK417, MR762 Upper Receiver Rod Tool

    HK417, MR762 Upper Receiver Rod Tool

    MI Midwest Industries

    Now: $143.95
    Was: $159.95
    Midwest Industries Upper Receiver Rod Tool for HK417, MR762 Receiver support rod for HK417 and MR762 upper receivers. Designed to prevent receiver and index-pin damage during barrel nut removal, muzzle device installation, and other high-torque...
    Now: $143.95
    Was: $159.95
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    Was: $159.95
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    New - H&K HK MR762/417 Cartridge Extractor - HKP-16842
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    HK417, MR762 Cartridge Extractor

    H&K Heckler & Koch

    Now: $85.45
    Was: $94.95
    H&K HK MR762/417 Cartridge Extractor   Compatible With: HK MR762 HK 417
    Now: $85.45
    Was: $94.95
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    New - PTR HK 91/G3 (7.62x51/.308) Full Auto Bolt Carrier - Tungsten Filled - HKP-01777 HK91, G3 Bolt Carrier - Full Auto - Tungsten Filled
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    HK91, G3 Bolt Carrier - Full Auto - Tungsten Filled

    PTR

    Now: $269.95
    Was: $299.95
    US-Made F/A G3, 91, and PTR-91 Bolt Carrier - Full Auto Carrier - Tungsten Filled PTR uses the exact Heckler & Koch specs and the same steel to manufacture their carriers. PTR uses HK factory blueprints for manufacturing & quality control. This...
    Now: $269.95
    Was: $299.95
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    New - H&K MP5 40/10 Threaded Bolt/Mag Follower Catch Screw - HKP-00454 HK MP5 Catch Screw - Bolt or Mag Follower - 10mm and .40 S&W - Threaded

    HK MP5 Catch Screw - Bolt or Mag Follower - 10mm and .40 S&W - Threaded

    H&K Heckler & Koch

    Now: $31.46
    Was: $34.95
    MP5 40/10 Threaded Bolt Catch For Magazine Follower This is the small threaded screw that fits into the bolt-hold-open axle and makes contact with the magazine follower to activate the bolt-hold-open. A small but critical part is to keep spares on hand,...
    Now: $31.46
    Was: $34.95
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    Was: $34.95
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    New - H&K MP5 40/10 -4 Roller - HKP-00337 HK MP5 40, 10 Roller - -4
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    HK MP5 40, 10 Roller - -4

    H&K Heckler & Koch

    Now: $17.95
    Was: $19.95
    HK German MP5 40/10 -4 roller Hard to find and essential for making headspace adjustments when necessary. Great spare to have on hand and no longer in production.  Please Note: The price listed is per roller. Order 2 (pair) for a complete set for...
    Now: $17.95
    Was: $19.95
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    New - HK MP5 100 Degree Locking Piece - Sold As Is - Gunsmith Special - HKP-99117 HK MP5 100 Degree Locking Piece - Sold As Is - Gunsmith Special
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    HK MP5 100 Degree Locking Piece - Sold As Is - Gunsmith Special

    USA

    Now: $7.46
    Was: $33.95
    HK MP5 100 Degree Locking Piece - Sold As Is - Gunsmith Special This US-made MP5 100 degree locking piece is the correct locking piece for all HK MP5-style forearms. This locking piece has also now become the factory correct locking piece for all HK...
    Now: $7.46
    Was: $33.95
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    New - H&K HK MP5 9mm Complete Full Auto Bolt Group - HKP-21478 HK MP5 Bolt Group - 9mm - Full Auto - Complete
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    HK MP5 Bolt Group - 9mm - Full Auto - Complete

    H&K Heckler & Koch

    Now: $2,587.45
    Was: $2,874.95
    H&K HK MP5 9mm Complete Full Auto Bolt Group This is a factory genuine HK German full auto bolt group compiled with the best German parts available for  those that need the best parts on their beloved MP5. Last call on these as they are NLA and...
    Now: $2,587.45
    Was: $2,874.95
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    Now: $2,587.45
    Was: $2,874.95
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  • On Sale
    New - HKP HK MR762/417 Titanium Firing Pin - HKP-17768
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    HK417, MR762 Firing Pin - Titanium

    HKP HK Parts

    Now: $39.96
    Was: $49.95
    HK MR762 & HK417 Firing Pin - Titanium Grade 6 weapons grade Titanium manufacture. Made  in the USA. A must have upgrade to have on hand as the firing pin is one of the most abused components in the HK MR 762 & HK417 weapon system. Get the...
    Now: $39.96
    Was: $49.95
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    New - H&K HK MR556/MR762/417 Index Pin Spring - HKP-17021
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    HK417, MR556, MR762 Index Pin Spring

    H&K Heckler & Koch

    Now: $7.16
    Was: $7.95
    H&K HK MR556/MR762/417 Index Pin Spring   Compatible With: HK MR556 HK 417 HK MR762  
    Now: $7.16
    Was: $7.95
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    Now: $7.16
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