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 UMP (.40 S&W/.45 ACP/9mm) Lower Bolt Carrier Guide - HKP-16500 HK UMP Bolt Carrier Guide
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    HK UMP Bolt Carrier Guide

    H&K Heckler & Koch

    $12.95
    HK German All Steel UMP Carrier Guide This is the steel piece the guides the UMP bolt carrier. Compatible With: All HK UMP lowers
    HKP-16500
    $12.95
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    $12.95
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  • New - FMP HK 21 (7.62x51/.308) Bolt Carrier - HK Contract w/ FMP - HKP-00566
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    HK21 Bolt Carrier - Stripped

    H&K Heckler & Koch

    $549.95
    HK21 Heckler and Koch Factory FMP Stripped Bolt Carrier New factory surplus. HK Contract with FMP.
    HKP-00566
    $549.95
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    $549.95
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  • New - H&K 23E/13E/G43 (7.62x51/.308) & (5.56/.223) Extractor - HKP-00818 HK23E, HK13E, G43 Extractor - 7.62x51 / .308, 5.56 / .223
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    HK23E, HK13E, G43 Extractor - 7.62x51 / .308, 5.56 / .223

    H&K Heckler & Koch

    $119.95
    HK23E & HK13E Extractor New HK German and no longer in production. Compatible With: MM 23E HK 13E
    HKP-00818
    $119.95
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  • New - H&K MP5 40/10 Low Impulse Locking Piece #24 - HKP-00438 HK MP5 Locking Piece #24 - 90 Degree - Low Impulse - .40 S&W, 10mm
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    HK MP5 Locking Piece #24 - 90 Degree - Low Impulse - .40 S&W, 10mm

    H&K Heckler & Koch

    $129.95
    New HK German MP5 40 or MP5 10mm Low Impulse Locking Piece Marked #24 This is the factory 90-degree locking piece. Used for standard loads with low to average impulses. Compatible With: MP5 10 MP5 40 MP5 .357
    HKP-00438
    $129.95
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  • Out Of Stock
    New - H&K HK 53 Complete Recoil Assembly - HKP-00479

    HK53 Complete Recoil Assembly

    H&K Heckler & Koch

    $149.95
    HK German HK53 Recoil Assembly Complete Brand new HK German manufactured. Each unit will fit factory HK53 firearms or clones that are built to factory specs. Compatible With: HK 53 HK clones such as V53 & C53 firearms
    HKP-00479
    $149.95
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    $149.95
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  • New - H&K MP5 40/10 +4 Roller - HKP-00335 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

    $20.95
    New 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...
    HKP-00335
    $20.95
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  • New - RCM MP5 40/10 Low Impulse Locking Piece #24 - HKP-15148 HK MP5 Locking Piece #24 - 90 Degree - Low Impulse - .40 S&W, 10mm - US
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    HK MP5 Locking Piece #24 - 90 Degree - Low Impulse - .40 S&W, 10mm - US

    RCM

    $44.95
    RCM MP5 40/10 Low Impulse Locking Piece #24 Made out of enhanced material and heat treated to spec. The # 24 is the 90-degree locking piece. This is also the standard non-high impulse ammo locking piece.  Compatible With:  MP5...
    HKP-15148
    $44.95
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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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  • Out Of Stock
    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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    $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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