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 416 Complete Bolt Head - HKP-00044 HK416 Complete Bolt Head

    HK416 Complete Bolt Head

    H&K Heckler & Koch

    $0.00
    HK German 416 Bolt Head Complete New HK German manufacture for the HK 416 models. Date coded & proof marked and current HK production.
    $0.00
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    New - H&K HK 416 Complete Bolt Group - HKP-00043 HK416 Complete Bolt Group

    HK416 Complete Bolt Group

    H&K Heckler & Koch

    $0.00
    HK 416 Bolt Group Complete - German New HK German 416 Bolt group. Rare component as the HK bolt groups are now considered EUC items and are not for sale from HK Germany.  Each unit is factory fresh with all of the OTB upgrades. Includes: HK 416 F/A...
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    New - HK UMP/USC (.40 S&W) Extractor - HKP-02624 HK UMP/USC (.40 S&W) Extractor

    HK UMP/USC (.40 S&W) Extractor

    $39.95
    New US-Made USC Or UMP .40 Extractor This part is a repair and replacement item, as these are prone to breakage, and it's a part that's hard to find and a great item to have on hand. Please Note: HK considers this a high wear and replacement...
    $39.95
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    New - HKP/H&K UMP 9mm Conversion Kit - Threaded Barrel 1/2x28 - 3-Lug - HKP-02285 HK UMP, USC Kit - Caliber Conversion - 9mm - 30 Round

    HK UMP, USC Kit - Caliber Conversion - 9mm - 30 Round

    HKP HK Parts

    $999.95
    HK Parts and Heckler and Koch HK UMP and HK USC 9mm Conversion Kit - Threaded Barrel 1/2x28 - 3-Lug This UMP, USC conversion kit will convert existing conversions to 9mm. This is a simple drop-in conversion for those who have already done the USC-UMP...
    $999.95
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    New - HKP HK UMP 9mm Conversion Kit -Threaded 1/2x28 - HKP-02287 HK UMP Conversion Kit - 9mm  - Threaded 1/2x28

    HK UMP Conversion Kit - 9mm - Threaded 1/2x28

    HKP HK Parts

    $679.95
    HKP HK UMP 9mm Conversion Kit -Threaded 1/2x28 9mm UMP/USC conversion kit will convert existing USC-UMP conversions to 9mm. This is a simple drop-in conversion for those that have already done the USC-UMP conversion. The conversion parts are drop in with...
    $679.95
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    New - H&K 23E (5.56/.223) Factory Extractor Spring - HKP-00819

    HK23E Extractor Spring

    H&K Heckler & Koch

    $0.00
    HK23E Factory German Extractor Spring Rare and hard to find. This is a new HK German part.
    $0.00
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    New - H&K 21E/23E (7.62x51/.308) & (5.56/.223) Extractor Cylindrical Pin - HKP-00863

    HK21E, HK23E Extractor Cylindrical Pin

    H&K Heckler & Koch

    $0.00
    HK 21E, HK 23E Extractor Cylindrical Pin This part holds the extractor in place on the bolt head. A great spare to have on hand.
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    New - H&K 21/21E/23E/PSG1/MSG90 German Firing Pin Spring - HKP-00816

    HK21, HK23E, PSG1, MSG90 Firing Pin Spring

    H&K Heckler & Koch

    $0.00
    HK German HK21E, HK23E Firing Pin Spring A must-have spare and replacement part. No longer in production. Compatible With: HK21E HK23E HK11E HK13 E HK21 HK MSG90 HK PSG1
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    New - H&K 11E (7.62x51/.308) Bolt Group Complete - HKP-00585 HK11E Bolt Group - Complete

    HK11E Bolt Group - Complete

    H&K Heckler & Koch

    $0.00
    HK11E Bolt Group Complete This is the complete bolt group for an HK German HK11E. Now out of production and rare. Includes the following: HK11E bolt carrier complete HK11E bolt head complete HK11E firing pin HK11E firing pin spring HK11E locking piece...
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    New - H&K 21 (7.62x51/.308) Firing Pin - HKP-00546 HK21 Firing Pin

    HK21 Firing Pin

    H&K Heckler & Koch

    $0.00
    HK German 21 Firing Pin - Old Stock Compatible With: HK21
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    New - H&K 11E (7.62x51/.308) Bolt Carrier - HKP-16492 HK11E Bolt Carrier

    HK11E Bolt Carrier

    H&K Heckler & Koch

    $899.95
    HK 11E bolt carrier HK21E to HK11E bolt carrier used to convert an HK21E to an HK11E to accept HK91/G3 style magazines. This is the HK11E bolt carrier only. Includes: HK 11E Bolt Carrier Last units no longer made- these were the LAST units HK Germany...
    $899.95
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    New - H&K PSG1/MSG90 (7.62x51/.308) Complete Factory Locking Roller Set - (12 rollers) - HKP-00822

    HK PSG1, MSG90 Locking Rollers - Set of 12 - Factory Complete

    H&K Heckler & Koch

    $0.00
    HK PSG1 Factory Locking Roller Set Complete   RARE! (Every Size) That HK Made For The MSG90 / HKPSG1/ & HK23E AS Follows - 6, - 4, - 2, Standard 8mm, +2, +4 (Pair Of Each Size) PSG1 / 23E Half Moon Roller Set Complete (Total Of 12 Rollers) More...
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