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) Bolt Catch Spring - HKP-01861
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    HK G36, SL8 Bolt Catch Spring

    H&K Heckler & Koch

    $9.95
    HK German G36 & SL8 Bolt Catch Spring  
    HKP-01861
    $9.95
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    $9.95
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  • New - PTR HK 91/G3 (7.62x51/.308) Semi-Auto Bolt Carrier - HKP-01461 HK91, G3 Bolt Carrier - Semi Auto
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    HK91, G3 Bolt Carrier - Semi Auto

    PTR

    $249.95
    New US Made HK91, HK G3, PTR-91 Bolt Carrier - Semi Auto Carrier This part is made to exact H&K specs and with the same material. PTR uses HK factory blueprints for manufacturing and quality control. Manufactured at the PTR facility here in the...
    HKP-01461
    $249.95
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    $249.95
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  • New - H&K MP5 40/10 -4 Roller - HKP-00337 HK MP5 Locking Roller -4 - .40 S&W / 10mm
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    HK MP5 Locking Roller -4 - .40 S&W / 10mm

    H&K Heckler & Koch

    $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...
    HKP-00337
    $19.95
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  • New - HKP HK MR762/417 Titanium Firing Pin - HKP-17768
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    HK417, MR762 Firing Pin - Titanium

    HKP HK Parts

    $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...
    HKP-17768
    $49.95
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  • New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Bolt Catch - HKP-01897
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    HK UMP, USC Bolt Catch

    H&K Heckler & Koch

    $36.95
    HK UMP & USC Bolt Catch  New HK German lower. Compatible With: HK UMP HK USC
    HKP-01897
    $36.95
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    $36.95
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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

    $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...
    HKP-01777
    $299.95
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    $299.95
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  • Out Of Stock
    RCM HK MP5K Recoil Rod HK MP5K Recoil Rod Assembly - 9mm

    HK MP5K Recoil Rod Assembly - 9mm

    RCM

    $54.95
    RCM HK MP5K Recoil Rod Assembly The recoil rod and spring assembly is a great item to have on hand for replacement and spares as this is a consumable part. Compatible With: HK MP5K NOT compatible with SP5K with the F-style recoil rod MP5K clones and...
    HKP-22203
    $54.95
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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

    $94.95
    H&K HK MR762/417 Cartridge Extractor   Compatible With: HK MR762 HK 417
    HKP-16842
    $94.95
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    $94.95
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  • Out Of Stock
    New - H&K MP5 40/10 Threaded Bolt/Mag Follower Catch Screw - HKP-00454 HK MP5 Magazine Follower Bolt Catch Screw - Threaded - .40 S&W / 10mm

    HK MP5 Magazine Follower Bolt Catch Screw - Threaded - .40 S&W / 10mm

    H&K Heckler & Koch

    $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,...
    HKP-00454
    $34.95
    Out Of Stock
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    $34.95
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  • New - H&K SP5K 9mm Semi Auto Bolt Carrier - HKP-18207 HK SP5K Bolt Carrier - Semi Auto - 9mm
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    HK SP5K Bolt Carrier - Semi Auto - 9mm

    H&K Heckler & Koch

    $449.95
    Heckler and Koch HK SP5K 9mm Semi-Auto Bolt Carrier German-made HK SP5K bolt carrier built to the factory semi-auto SP5K specification. This carrier features the correct SP5K closed-front design and semi-auto geometry, making it the proper HK part for...
    HKP-18207
    $449.95
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  • On Sale
    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: $2,245.95
    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...
    HKP-21478
    Now: $2,245.95
    Was: $2,874.95
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    Now: $2,245.95
    Was: $2,874.95
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  • New - H&K HK MR762/417 Axle Extractor Retaining Pin - HKP-16810
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    HK417, MR762 Axle Extractor Retaining Pin

    H&K Heckler & Koch

    $8.95
    H&K HK MR762/417 Axle Extractor Retaining Pin This extractor retaining pin is constructed of durable, black finished, steel and is an OEM factory original H&K component. This retaining pin is designed to fit the HK417 & MR762 model of rifles...
    HKP-16810
    $8.95
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    $8.95
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