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
HK91, G3 #17 Locking Piece - 36 Degree
H&K Heckler & Koch
$0.00HK German #17 Locking Piece - 36 Degree One of the best ways to slow down & tame that 21). Can also be used for HK91/G3 special projects such as suppressors, & heavier than normal loads. This is also the factory correct locking piece for all...$0.00 -
Out Of Stock
HK91, G3 F/A Bolt Group With Rhinemetall Carrier
H&K Heckler & Koch
$0.00German Rhinemetall G3, 91 F/A Bolt Group Complete Each 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...$0.00 -
Out Of Stock
HK91, G3 Firing Pin - Titanium
HKP HK Parts
$29.95HK G3, 91 & PTR Firing Pin - Titanium Grade 6 weapons grade Titanium manufacture. Made 100% in the USA A must have upgrade to have on hand as the firing pin is one of the most abused components in the HK G3, 91 & PTR weapon system. Get the...$29.95 -
Out Of Stock
HK53 Bolt Carrier - Full Auto
H&K Heckler & Koch
$0.00Heckler and Koch German HK53 Full Auto Bolt Carrier Brand new HK German tungsten filled HK53 factory bolt carrier complete. The real deal not cut down HK33 carrier. This is the factory fresh, factory correct HK53 bolt carrier. Fits all: HK53 Custom HK53...$0.00 -
Out Of Stock
HK33, HK53, HK93 Locking Piece #7 - Factory
H&K Heckler & Koch
$0.00H&K 93/53/33 (5.56/.223) #7 Factory Locking Piece New HK German 93, 33 # 7 55 degree Factory Locking Piece Made and found on stock HK93, 33 firearms. New HK German manufacture. Compatible With HK 93/53/33$0.00 -
Out Of Stock
HK53 Bolt Carrier Group - Complete - Full Auto
H&K Heckler & Koch
$0.00Heckler and Koch German HK53 Factory Full Auto Bolt Carrier Group Complete. Includes: HK53 full auto, tungsten filled bolt carrier complete- German HK53 bolt head complete with all parts- German HK53 US manufactured # 3 locking piece- US HK53 Firing...$0.00 -
Out Of Stock
HK MP5 40/10 Complete Bolt Head
H&K Heckler & Koch
$0.00New HK German factory bolt head assembled and complete. No longer made and out of production get them while you still can. We have the last units available that HK has in stock. Brand new old stock German MP5 40, MP5 10mm bolt head complete. 100% German...$0.00 -
Out Of Stock
HK Roller Sear For Burst Trigger Packs
H&K Heckler & Koch
$0.00H&K Roller Sear For Burst Trigger Packs New HK German Roller Sear for SEF & Navy trigger packs. This is the newer style "roller" type not the older friction type of sear. This item is also referred to as the catch with roller but more commonly...$0.00 -
Out Of Stock
HK MP5 Bolt Group - Complete - "Action 3"
H&K Heckler & Koch
$0.00H&K MP5 "Action 3" Bolt Group Complete New HK German MP5 "Action 3" Bolt Group Complete. Includes the following: MP5 Action 3 Bolt head complete, MP5 Full Auto Bolt Carrier (newer F style), MP5 Firing pin, MP5 Firing pin spring, 100 MP5 Degree...$0.00 -
HK Locking Roller -4 , 7.96mm
HKP HK Parts
$8.957.96mm - Undersized -4 Roller For HK Roller Lock Bolt HeadHK spec under-sized roller that will fit all HK bolt heads including HK91/G3, HK93/33/53, HK94, MP5, SP89 all clones and the Cetme & Cetme clones. An easy way to remember the size you need to...$8.95 -
Out Of Stock
HK MP5, MP5K Bolt Head - Complete - Action 3
H&K Heckler & Koch
$0.00H&K MP5, MP5K Bolt Head Complete - Action 3 New and the latest manufacturer, just got a few in. They are rare and hard to find as they are now considered "restricted items" by HK. Each is a current HK produced bolt head complete. Perfect for the 9mm...$0.00 -
Out Of Stock
HK MP5 Bolt Head - Carrier - Action 3 - 9mm
H&K Heckler & Koch
$0.00MP5 9mm Bolt Carrier Action 3 Designed to be used with the standard recoil assemblies from an HK MP5 or HK94 model. Will work in clones and other factory-spec firearms. HK MP5 A2, A3, SD, and N models$0.00