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
HK G36 Bolt Group - Complete
H&K Heckler & Koch
$0.00HK G36 Bolt Group New Factory German HK. HK G36 HK G36K HK G36CThis will not work with a HK SL8.$0.00 -
Out Of Stock
HK91. G3 F/A Complete Bolt Group
H&K Heckler & Koch
$0.00German G3, 91 F/A Bolt Group CompleteEach Bolt group includes the following factory HK parts: Complete Bolt Head Assembled (extractor, extractor spring, roller retainer plate and rollers) >Firing pin >Firing pin spring >HK91/G3 locking piece...$0.00 -
Out Of StockOn Sale
HK417, MR762, G28 Bolt Head Complete
H&K Heckler & Koch
Now: $395.95Was: $439.95H&K HK MR762/417/G28 Bolt Head Complete New HK German manufacture Compatible With: HK MR762 HK MR308 HK G28Now: $395.95Was: $439.95 -
On Sale
Now: $223.46Was: $248.29 -
On Sale
Now: $251.95Was: $279.95 -
On Sale
HK940, SL7 30-06 Locking Piece
H&K Heckler & Koch
Now: $80.95Was: $89.95H&K HK 940/SL7 30-06 Locking PieceNow: $80.95Was: $89.95 -
Out Of StockOn Sale
HK416, MR556 Upper 9" 416C Style Conversion Kit
HKP HK Parts
Now: $719.96Was: $899.95MR556 & HK416 Upper Conversion Kit - 9" - HK 416C Style Finally an answer for all of those that have been wanting as close to the original, rare unicorn of a find HK 416C 9" barrel conversion kit for 416 or MR556. Each conversion kit upper or barrel...Now: $719.96Was: $899.95 -
Out Of Stock
HK416 Complete Bolt Head
H&K Heckler & Koch
$0.00HK German 416 Bolt Head Complete New HK German manufacture for the HK 416 models. Date coded & proof marked and current HK production.$0.00 -
Out Of Stock
HK416 Complete Bolt Group
H&K Heckler & Koch
$0.00HK 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...$0.00 -
Out Of StockOn Sale
HK UMP, USC Kit - Caliber Conversion - 9mm - 30 Round
HKP HK Parts
Now: $799.96Was: $999.95HK 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...Now: $799.96Was: $999.95 -
Out Of StockOn Sale
HK UMP Conversion Kit - 9mm - Threaded 1/2x28
HKP HK Parts
Now: $543.96Was: $679.95HKP 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...Now: $543.96Was: $679.95 -
Out Of Stock
HK23E Extractor Spring
H&K Heckler & Koch
$0.00HK23E Factory German Extractor Spring Rare and hard to find. This is a new HK German part.$0.00