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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  • Out Of Stock
    New - GSG9 HK G36 (5.56/.223) Complete Bolt Head - HKP-18983 HK G36 Bolt Head, Complete

    HK G36 Bolt Head, Complete

    GSG9

    $0.00
    G36 Bolt Head - Complete - USA G36 Bolt Head allows the use of double stack magazines in your SL8 conversion to high capacity G36, Magpul or AR15 Magazines. Perfect for the G36 conversions or for a spare part to have on hand. Made in the USA from 9310,...
    HKP-18983
    $0.00
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    $0.00
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  • New - HKP PTR PDW (7.62x51/.308) Complete Bolt Group - HKP-17389 HK PTR PDW Bolt Group - Complete

    HK PTR PDW Bolt Group - Complete

    HKP HK Parts

    $379.95
    US Made PTR Bolt Group Complete Semi-Auto 308. Factory correct bolt head and locking piece for use in the PTR PDW chambered in 7.62X51 or 308. Brand new May 2015 manufacture. This is the correct bolt for all PTR PDW with 8" barrels.
    HKP-17389
    $379.95
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    $379.95
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  • HK MP5 Extractor Rebuild Kit - 9mm - RCM E Bolt Head

    HK MP5 Extractor Rebuild Kit - 9mm - RCM E Bolt Head

    RCM

    $64.95
    RCM Complete Extractor Rebuild Kit for MP5 E Bolt Heads - 9mm Complete extractor rebuild kit for RCM MP5 E bolt heads in 9mm. Made in the USA from steel, this kit is designed to refresh extractor-related wear components on compatible bolt heads and...
    HKP-22833
    $64.95
    Qty in Cart: 0
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    $64.95
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  • New - MKE -4 Roller for Bolt Head 7.96mm - Under-sized - HKP-22238 MKE -4 Roller for Bolt Head 7.96mm - Under-sized MKE HKP-22238

    HK 90 Series Locking Roller for Bolt Head - 7.96mm

    MKE

    $28.95
    MKE -4 Roller for Bolt Head 7.96mm - Under-sized The proper roller size is essential for proper head spacing and bolt gap. Made in Turkey by MKE on HK tooling.  Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the...
    HKP-22238
    $28.95
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    $28.95
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  • Out Of Stock
    On Sale
    HK MP5F Bolt Group - Complete - BLEMISHED New - H&K MP5 F Bolt Group Complete - BLEMISHED - HKP-00953-B

    HK MP5F Bolt Group - Complete - BLEMISHED

    H&K Heckler & Koch

    Now: $1,895.95
    Was: $4,399.95
    H&K MP5 F Bolt Group Complete - BLEMISHED   COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL.   The bolt head, bolt carrier, and all F/A-related parts...
    HKP-00953-B
    Now: $1,895.95
    Was: $4,399.95
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    Now: $1,895.95
    Was: $4,399.95
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  • New - RCM HK MP5 & MP5K 40/10 SD 120 Degree Locking Piece - HKP-21524 HK MP5SD, MP5K Locking Piece - 120 Degree - .40 S&W, 10mm

    HK MP5SD, MP5K Locking Piece - 120 Degree - .40 S&W, 10mm

    RCM

    $44.95
    RCM HK MP5 & MP5K 40/10 SD 120 Degree Locking Piece Compatible With:  MP5, MP5K  MP5SD 
    HKP-21524
    $44.95
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  • Out Of Stock
    New - HK UMP (9mm) Extractor - HKP-02625

    HK UMP, USC Extractor - 9mm

    USA

    $39.95
    New US-Made USC & UMP 9mm Extractor: This is the perfect spare part for your UMP or USC 9mm conversion.  Please Note: HK considers this a high wear and replacement item. Once it's removed from the carrier, the spring tension...
    HKP-02625
    $39.95
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  • New - RCM MP5 40/10 Full Auto Bolt Carrier - HKP-01192 HK MP5 Bolt Carrier - Full Auto - .40 S&W, 10mm, .357 SIG

    HK MP5 Bolt Carrier - Full Auto - .40 S&W, 10mm, .357 SIG

    RCM

    $157.95
    MP5 40, 10mm - Full Auto Bolt Carrier Machined completely from billet ordnance steel. This carrier is made to the latest specs and are Tungsten filled and heat treated providing the finest American made carrier available. Compatible With: MP5 40 MP5...
    HKP-01192
    $157.95
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  • New - HKP MP5K 40/10 Full Auto Bolt Carrier - HKP-18362 HK MP5K Bolt Carrier - Full Auto - .40 S&W, 10mm - USA

    HK MP5K Bolt Carrier - Full Auto - .40 S&W, 10mm - USA

    HKP HK Parts

    $149.95
    HKP MP5K 40/10 Full Auto Bolt Carrier Machined completely from billet ordnance steel. This carrier is made to the latest specs and is Tungsten filled, and heat treated providing the finest American made carrier available. Not to be confused with cheap...
    HKP-18362
    $149.95
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    $149.95
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  • On Sale
    HK 416 A5 Bolt Carrier H&K Heckler & Koch HKP-22328 HK 416 A5 Bolt Carrier H&K Heckler & Koch HKP-22328

    HK416 A5 Bolt Carrier

    H&K Heckler & Koch

    Now: $1,549.95
    Was: $1,997.95
    H&K HK416 A5 Bolt Carrier Factory HK416 A5 full auto bolt carrier.  This carrier is backwards compatible with earlier HK416 A1 and A3 variants. Features the updated captive firing pin retaining system. Compatible With: HK416 A5 HK416 A1 HK416...
    HKP-22328
    Now: $1,549.95
    Was: $1,997.95
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  • New - H&K HK G36K Factory Blank Firing Adapter - HKP-16974 HK G36K Factory Blank Firing Adapter

    HK G36K Factory Blank Firing Adapter

    H&K Heckler & Koch

    $269.95
    H&K HK G36K Factory Blank Firing Adapter G36K Factory HK blank firing adapter. This adapter is date coded and comes complete with the spring clip installed. Compatible With: G36K exclusively
    HKP-16974
    $269.95
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    $269.95
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