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-32 (7.62x39) Complete Bolt Group - PDW
HKP HK Parts
$359.95US Made PTR 32 PDW 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 PDW with 8" barrels.HKP-17387$359.95 -
Out Of Stock
MM HK UMP 9mm Conversion Kit
Michaels Machines
$989.95HK UMP & USC 9mm Conversion Kit US Made - 9mm 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 conversion parts are drop-in with...HKP-02286$989.95 -
Out Of Stock
H&K +4 Roller 8.04mm - Used
H&K Heckler & Koch
$0.00HK German Roller +4 - Used - 8.04mm8.04 mm locking roller, The proper roller size is essential for proper bolt gap. HK German Manufacture.Price is per roller.**You need to order two for a complete set (pair) for bolt head.**HKP-19373$0.00 -
Out Of Stock
H&K 11E (7.62x51/.308) Bolt Carrier
H&K Heckler & Koch
$899.95HK 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...HKP-16492$899.95 -
Out Of Stock
H&K 11E (7.62x51/.308) Bolt Group Complete
H&K Heckler & Koch
$0.00HK11E 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...HKP-00585$0.00 -
H&K 21E (7.62x51/.308) Feed Mechanism Roller Axle
H&K Heckler & Koch
$64.95HK 21E & 23E Series Feed Mechanism Roller AxleHKP-02062$64.95 -
Out Of Stock
H&K 33, 93 Full Auto Bolt Group Complete
H&K Heckler & Koch
$0.00HK German 33, 93, full auto bolt group Latest Manufacture- NewEach new German HK bolt group includes all German HK parts to include: HK33/93 latest production, tungsten filled F/A Carrier- German HK 33/93 latest production Bolt head complete with all...HKP-16729$0.00 -
Out Of Stock
H&K 53 (5.56/.223) F/A Bolt Carrier Group Complete
H&K Heckler & Koch
$0.00HK German 53 Factory Full Auto Bolt Carrier Group Complete. Each HK53 bolt group includes the following: HK53 full auto, tungsten filled bolt carrier complete- German HK53 bolt head complete with all parts- German HK53 US manufactured # 3 locking piece-...HKP-00475$0.00 -
Out Of Stock
H&K 53 (5.56/.223) Full Auto Bolt Carrier
H&K Heckler & Koch
$0.00HK German HK53 Full Auto Bolt Carrier Brand new HK German tunsten 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 custom builds...HKP-00476$0.00 -
Out Of Stock
H&K 91/G3 (7.62x51/.308) 7.92mm Roller - (-8)
H&K Heckler & Koch
$0.00New HK German Factory -8 Roller 7.92mm in size New HK German negative 8 (7.92mm) that is used for proper head spacing. Hard to find this factory HK roller in this size.HKP-00346$0.00 -
Out Of Stock
H&K 91/G3 (7.62x51/.308) 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...HKP-00357$0.00 -
H&K G36/SL8 (5.56/.223) Complete Firing Pin Retaining Pin
H&K Heckler & Koch
$9.95Retaining Pin For Firing Pin Complete With O-ring Compatible With: HK G36 HK SL8HKP-14050$9.95 -
H&K HK 416 A5 Bolt Carrier Complete
H&K Heckler & Koch
$2,349.95German H&K HK 416 A5 Bolt Carrier Complete Get your hands on that critical puzzle piece for your factory-correct 416A5 build. Fully assembled and ready to drop into your uper receiver. Bolt carriers may be marked ".223 Rem" or "5.56 x 45"...HKP-21500$2,349.95 -
Out Of Stock
H&K HK 416 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...HKP-00043$0.00 -
Out Of Stock
H&K HK 94 Semi Bolt Carrier - Used
H&K Heckler & Koch
$0.00Original German factory HK vintage date coded "IJ" 1989 manufactured bolt carrier. A rare once in a lifetime find. This is the last batch that HK ever imported or made available. Last call!Fits all: HK94 HK MP5 (if semi only is desired) Other 94 clones...HKP-00670$0.00 -
Out Of Stock
H&K HK G3, 91 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...HKP-19671$0.00 -
Out Of Stock
H&K HK G36 Complete Bolt Group - Black
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.HKP-00635$0.00 -
Out Of Stock
H&K HK G36 Incomplete Bolt Group Carrier - Black
H&K Heckler & Koch
$0.00HK G36 Bolthead Carrier Incomplete This is not compatible with a HK SL8.HKP-16434$0.00 -
Out Of Stock
H&K HK G36, HK G36K, HK G36C Complete Bolt Head
H&K Heckler & Koch
$0.00New HK German G36, G36K & G36C Bolt Head Complete. This Is Also The Needed Part To Allow The SL8 To Use The Double Stack Magazines. Inclused all of the parts such as the extractor, extractor spring, ejector, ejector spring,etc for a complete ready to...HKP-00636$0.00 -
H&K HK MP5 40 & MP5 10mm Factory F/A Bolt Carrier
H&K Heckler & Koch
$449.95New HK German MP5 40/10 Factory F/A Bolt Carrier This is the latest and greatest version of the MP5 40 and MP5 10mm carrier. No longer in production or manufactured. Tungsten filled German HK and the real deal.HKP-19390$449.95 -
$279.95 -
Out Of Stock
H&K MP5 "Action 3" Bolt Group Complete
H&K Heckler & Koch
$0.00New 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 Locking piece & Complete MP5/94 recoil rod...HKP-00129$0.00 -
H&K MP5 40/10 +4 Roller
H&K Heckler & Koch
$20.95New HK German MP5 40/10 +4 roller Hard to find and needed for headspace adjustments if needed. Great spare to have on hand and no longer in production. Each roller is priced per piece.HKP-00335$20.95 -
Out Of Stock
H&K MP5 9mm Bolt Carrier Action 3
H&K Heckler & Koch
$0.00MP5 9mm Bolt Carrier Action 3 Designed to be used with the standard recoil assemblies from an MP5/94 model. Will work in clones and other factory-spec firearms.HKP-02549$0.00 -
Out Of Stock
H&K MP5 F Bolt Group Complete
H&K Heckler & Koch
$0.00H&K MP5 F Bolt Group Complete The bolt head, bolt carrier, and all F/A-related parts have been restricted by HK and will become increasingly harder to find. The F in the MP5F designation was added after the French Military asked HK to "beef"...HKP-00953$0.00 -
Out Of Stock
H&K MP5 Full Auto Bolt Carrier-Used
H&K Heckler & Koch
$0.00MP5 German HK Full Auto Bolt Carrier UsedHKP-00669$0.00 -
Sale
H&K MP5/MP5K & SP5/SP5K 100 Degree Locking Piece - BLEMISHED
H&K Heckler & Koch
Now: $49.95Was: $89.95H&K MP5/MP5K & SP5/SP5K 100 Degree Locking Piece - BLEMISHED THESE LOCKING PIECES ARE GENUINE UNITS HK THAT WERE MODIFIED TO FUNCTION IN SINGLE-SHOT CONVERTED MP5 PLATFORM FIREARMS. THE MODIFICATION WILL NOT EFFECT THE OPERATION WHEN USED...HKP-00134-BNow: $49.95Was: $89.95 -
Out Of Stock
H&K MP5F 9mm Full Auto Bolt Carrier
H&K Heckler & Koch
$0.00This carrier is the latest and greatest MP5 carrier. Will fit all MP5/94's or clones semi or full. These are becoming increasingly hard to find. Get them while you can. This is the newer style that has the open back for the recoil assembly so it does...HKP-00092$0.00 -
Out Of Stock
H&K MP5K 9mm Complete Full Auto Bolt Group
H&K Heckler & Koch
$0.00MP5K Full Auto Bolt Group "F" Style Complete - GermanEach factory HK MP5K bolt group includes the following: MP5K F/A - F style bolt carrier F style bolt head 100 degree locking piece firing pin firing pin spring recoil rod assemblyExtremely rare...HKP-00384$0.00 -
H&K MSG90 (7.62x51/.308) +2 Rollers 8.02mm Set -Titanium
H&K Heckler & Koch
$284.95MSG90 (7.62x51/.308) +2 Rollers 8.02mm Set -Titanium Set (one pair) of half moon rollers.HKP-02453$284.95 -
H&K MSG90 (7.62x51/.308) +4 Rollers 8.04mm Set -Titanium
H&K Heckler & Koch
$329.95MSG90 (7.62x51/.308) +4 Rollers 8.04mm Set -Titanium Set (one pair) of half moon rollers.HKP-02454$329.95 -
H&K MSG90 (7.62x51/.308) -2 Rollers 7.98mm Set -Titanium
H&K Heckler & Koch
$284.95HK German MSG-90 Titanium -2 or 7.98mm Set (one pair) Of Half Moon RollersHKP-01063$284.95 -
H&K MSG90 (7.62x51/.308) -4 Rollers 7.96mm Set -Titanium
H&K Heckler & Koch
$329.95MSG90 (7.62x51/.308) -4 Rollers 7.96mm Set -Titanium Set (one pair) of half moon rollers.HKP-02451$329.95 -
H&K MSG90 (7.62x51/.308) Rollers 8.00mm Set - Titanium
H&K Heckler & Koch
$284.95HK German MSG-90 Titanium 8.00mm Set (one of two rollers) Half Moon RollersHKP-00227$284.95 -
Out Of Stock
H&K PSG1/MSG90 (7.62x51/.308) Bolt Carrier
H&K Heckler & Koch
$0.00HK German MSG90/PSG1 Bolt Carrier. Rare and hard to find. Now restricted by HK and will only become harder to find.HKP-00538$0.00 -
Out Of Stock
H&K PSG1/MSG90 (7.62x51/.308) Bolt Carrier Group Complete
H&K Heckler & Koch
$0.00New HK German PSG1, MSG90 Bolt Carrier Group Complete, A rare find and hard to find. Each bolt comes with the newest production HK German parts: PSG1/MSG90 Bolt carrier with forward assist grooves, Tungsten. Complete PSG1/MSG90 Bolt head 30T PSG1/MSg90...HKP-00533$0.00 -
Out Of Stock
H&K PSG1/MSG90 (7.62x51/.308) Complete Factory Locking Roller Set - (12 rollers)
H&K Heckler & Koch
$0.00RARE! HK PSG1 Factory Locking Roller Set Complete (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...HKP-00822$0.00 -
Out Of Stock
H&K Roller Sear For Burst Trigger Packs
H&K Heckler & Koch
$0.00New 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 called a sear.HKP-01711$0.00 -
H&K UMP (.40 S&W) Conversion Kit - Used
H&K Heckler & Koch
$1,087.95HK UMP .40 Caliber Conversion Kit This UMP conversion kit provides the necessary components to convert .45 sub-guns to .40 caliber. Machined bolt carriers are available for USC/UMP conversion sub-guns. This is a simple, drop-in conversion requiring a...HKP-00729$1,087.95 -
Out Of Stock
H&K UMP (.45 ACP) Bolt Group - Used
H&K Heckler & Koch
$0.00German HK UMP .45 Factory Full Auto Bolt Group Complete Used.Used German bolt carrier complete that is tungsten filled and the factory correct HK UMP .45 cal bolt group. Comes less the recoil assembly.HKP-01231$0.00