Bolt Carrier Groups
Discover top-quality H&K bolt carrier groups at HKParts, including the HK MP5 bolt carrier, 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
HKP PTR PDW (7.62x51/.308) Complete Bolt Group
HKP HK Parts
$359.95US 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$359.95 -
Out Of Stock
HKP PTR-32 (7.62x39) Complete Bolt Group
HKP HK Parts
$359.95US Made PTR 32 Bolt Group Complete Semi-Auto.Factory correct bolt head and locking piece for use in the PTR 32 chambered in 7.62X39. Brand new May 2015 manufacture. This is the correct bolt for all PTR 32 rifles with 12"and 16" barrels.HKP-17388$359.95 -
Out Of Stock
HKP/H&K UMP 9mm Conversion Kit - Threaded Barrel 1/2x28 - 3-Lug
HKP HK Parts
$999.95HKP/H&K UMP 9mm Conversion Kit - Threaded Barrel 1/2x28 - 3-Lug UMP/USC conversion kit will convert existing USC-UMP conversions to 9mm. This is a simple drop-in conversion for those who have already done the USC-UMP conversion. The total...HKP-02285$999.95 -
Out Of Stock
HKP/H&K UMP 9mm Conversion Kit -Threaded 1/2x28
HKP HK Parts
$679.95HKP/H&K 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...HKP-02287$679.95 -
Out Of Stock
Michaels Machines HK USC/UMP 9mm Semi Auto Bolt Carrier - Incomplete
Michaels Machines
$499.95HK UMP 9mm - Semi-Auto Bolt Stripped The semi-auto bolt is required for HK USC to HK UMP caliber conversions. The full-auto bolt carrier will not work in HK USC rifles. Features: Tungsten filled Heat treated Parkerized & polished Marked 9X19mm just...HKP-19871$499.95 -
PTR PDW (7.62x39) & (7.62x51/.308) Semi-Auto Bolt Carrier
PTR
$260.95US-Made PTR PDW Semi Auto Carrier Made by PTR using the same blueprints and materials the German HK factory uses, has allowed PTR91 to manufacture the finest of HK-style firearms here in the US. The PDW semi-carrier is another example of superior...HKP-14140$260.95 -
RCM MP5 40/10 Complete Bolt Head
RCM
$209.95HK 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$209.95 -
RCM MP5 40/10 Full Auto Bolt Carrier
RCM
$157.95MP5 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 -
RCM MP5K 40/10 Full Auto Bolt Carrier
RCM
$157.95MP5K 40/10 Full Auto Bolt Carrier - Latest Upgraded Version This part is built from billet ordnance steel. This US-made MP5K 40,10 style carrier is made with Tungsten and is heat-treated, providing the finest American-made carrier...HKP-01826$157.95