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 HK USP Series Old Style Firing Pin Block - HKP-01926 HK USP Firing Pin Block - Old Style
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    HK USP Firing Pin Block - Old Style

    H&K Heckler & Koch

    $29.95
    HK USP Series Old Style Firing Pin Block Compatible With: HK USP 45 HK USP 40 HK USP 9mm HK USP Compact 9mm HK USP Compact 357 HK USP Compact 40 HK USP Compact 45
    HKP-01926
    $29.95
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    New - H&K MP5 40/10 Bolt Hold Open Axle Roll Pin - HKP-01634

    HK MP5 Bolt Hold Open Axle Roll Pin - .40 S&W / 10mm

    H&K Heckler & Koch

    $8.95
    H&K MP5 40/10 Bolt Hold Open Axle Roll Pin  
    HKP-01634
    $8.95
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    $8.95
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  • New - HKP PTR HK91 / PTR-91 Bolt Head Complete - HKP-20140 HK91, PTR-91 Bolt Head Complete
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    HK91, PTR-91 Bolt Head Complete

    PTR

    $179.95
    HKP PTR HK91 / PTR-91 Bolt Head Complete New PTR bolt head complete with extractor, extractor spring, roller retainer plate, pair of 8mm rollers. Ready to drop in to replace your worn out bolt head. Bolt head counts as 1 US made compliance part for the...
    HKP-20140
    $179.95
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  • HK MR762 Firing Pin - HKP-17795
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    HK MR762 Firing Pin

    HKP HK Parts

    $29.95
    H&K HK MR762 Firing Pin US made steel firing pin for MR762 platforms. Compatible With: HK MR762
    HKP-17795
    $29.95
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  • New - H&K G36/SL8 (5.56/.223) Bolt Hold Open Catch - HKP-16378 HK G36, SL8 Bolt Hold Open Catch
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    HK G36, SL8 Bolt Hold Open Catch

    H&K Heckler & Koch

    $59.95
    H&K G36/SL8 (5.56/.223) Bolt Hold Open Catch New HK German manufacture. Compatible With: SL8-1 SL8-6
    HKP-16378
    $59.95
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  • New - H&K MP5 & HK94 Recoil Guide Rod - HKP-01054
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    HK MP5, HK94 Recoil Guide Rod

    H&K Heckler & Koch

    $14.95
    New HK German MP5, 94 Recoil Guide Rod Bar
    HKP-01054
    $14.95
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  • New - RCM MP5 40/10 Complete Bolt Head - HKP-02664 HK MP5 Bolt Head, Complete - .40 S&W / 10mm
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    HK MP5 Bolt Head, Complete - .40 S&W / 10mm

    RCM

    $211.95
      HK MP5 40/10 Bolt Head Complete - RCM- US Each bolt head incorporates the same enhanced material as all of the new RCM products. Ideal to replace out of spec, worn or broken bolt heads or for that custom build. Each bolt head will work and fit on...
    HKP-02664
    $211.95
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  • New - RCM HK SP5K Semi Auto Carrier - HKP-20983 HK SP5K Carrier - Semi Auto
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    HK SP5K Carrier - Semi Auto

    RCM

    $159.95
    RCM HK SP5K Semi Auto Carrier SP5K semi-auto carrier machined completely from billet ordnance steel. RCM US made SP5K carrier is made to the most updated and latest SP5K  specs and more. Tungsten filled, heat treated, phosphate finish and all...
    HKP-20983
    $159.95
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  • Out Of Stock
    New - HK UMP (.45 ACP) Bolt Group - HKP-18751 HK UMP45 Bolt Group

    HK UMP45 Bolt Group

    $369.95
    HK UMP .45 Tungsten Filled Semi Auto Bolt Group Complete. The semi auto bolt group is required for HK USC to HK UMP caliber conversions. Comes complete less the recoil assembly. Specifications: Tungsten filled Heat treated Parkerized
    HKP-18751
    $369.95
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  • New - H&K HK23E Recoil Spring - 5.56/.223 - HKP-02001
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    HK23E Recoil Spring - 5.56/.223

    H&K Heckler & Koch

    $79.95
    New German HK Factory HK23E Recoil Spring  
    HKP-02001
    $79.95
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  • New - HKP MP5SD 40/10 110 Degree Locking Piece - HKP-18274 HK MP5SD Locking Piece - 110 Degree
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    HK MP5SD Locking Piece - 110 Degree

    HKP HK Parts

    $49.95
    MP5 40 & MP5 10mm SD 110 Degree Locking Piece - USA Made in the USA from an enhanced material and heat treated to factory specifications. Each US made MP5 40/10 SD 110 degree locking price is designed for use with the MP5 40/10 SD variants...
    HKP-18274
    $49.95
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  • New - H&K MP5 & MP5K Stop Pin For Recoil Rod - HKP-17421
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    HK MP5, MP5K Recoil Rod Stop Pin

    H&K Heckler & Koch

    $14.99
    HK German MP5 & MP5K Recoil Rod Stop Pin New HK German manufacture a great spare or replacement item to have on hand. Compatible With: MP5, 94, SP5 MP5K, SP89, SP5KClones or other custom builds
    HKP-17421
    $14.99
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