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
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
$0.00H&K 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 custom...HKP-00476$0.00 -
Out Of Stock
H&K 91/G3 (7.62x51/.308) #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...HKP-00581$0.00 -
Out Of Stock
H&K 91/G3 (7.62x51/.308) 7.92mm Roller - (-8)
H&K Heckler & Koch
$0.00HK 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 a factory HK roller in this size. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt...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 -
Out Of Stock
H&K 93/53/33 (5.56/.223) #7 Factory Locking Piece
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 93/53/33HKP-00699$0.00 -
On Sale
H&K G3 Bolt Carrier - Gunsmith Special
H&K Heckler & Koch
Now: $49.95Was: $89.95H&K G3 Bolt Carrier - Gunsmith Special This gunsmith special bolt carrier will require re-work prior to being functional. Compatible With: HK G3 THIS CLOSEOUT PART IS NOT ELIGIBLE FOR RETURN, REFUND, OR EXCHANGE. SALE IS FINAL.HKP-99034Now: $49.95Was: $89.95 -
H&K G36 (5.56/.223)Gas Piston Rod
H&K Heckler & Koch
$55.95H&K G36 (5.56/.223) Gas Piston RodHKP-16539$55.95 -
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 93, HK 53, HK 33K, HK 33 #15 Locking Piece
H&K Heckler & Koch
$0.00H&K HK 93, HK 53, HK 33K, HK 33 #15 Locking Piece The German HK 65 degree angled locking piece was standard on the early HK53 rifles. This locking piece is also used for some custom HK build applications. Also, a great idea to keep a spare on hand...HKP-00480$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 -
$248.29 -
H&K HK 940/SL7 30-06 Locking Piece
H&K Heckler & Koch
$89.95H&K HK 940/SL7 30-06 Locking PieceHKP-02108$89.95 -
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, HK SL8 Lower Axle Pin
H&K Heckler & Koch
$0.00G36 & HK SL8 Lower Axle Pin The G36/SL8 (all models) uses the same size axle pin for all of the lower components (3 total). Except for the bolt holding open the device axle. Must insert from the right side to the left (per factory instruction).HKP-00291$0.00 -
H&K HK G36/SL8 Piston Rod Spring
H&K Heckler & Koch
$9.99HK G36 & SL8 Piston Rod Spring A must-have spare repair and replacement part. New HK German factory part. Compatible With: HK G36 HK SL8HKP-01863$9.99 -
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 -
Out Of Stock
H&K HK MP5, HK94 100 Degree Locking Piece-Used
H&K Heckler & Koch
$0.00H&K HK MP5, HK94 100 Degree Locking Piece-Used MP5 100 degree used surplus locking piece. Pulled from early HK German MP5 parts kits.HKP-00668$0.00 -
Out Of Stock
H&K HK MR762/417/G28 Bolt Head Complete
H&K Heckler & Koch
$0.00H&K HK MR762/417/G28 Bolt Head Complete New HK German manufacture Compatible With: HK MR762 HK MR308 HK G28HKP-18143$0.00 -
$279.95 -
H&K HK11 Recoil Spring
H&K Heckler & Koch
$18.95H&K HK11 Recoil Spring This German-made HK11 recoil spring is longer than the standard G3 springs but has the same pattern. As a project spring, this part can be cut down for use on G3 and HK33-type recoil rods. Many U.S.-built HK11's use G3 springs...HKP-21858$18.95 -
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 -
On Sale
H&K MP5 "Action 3" Bolt Group Complete - BLEMISHED
H&K Heckler & Koch
Now: $1,999.95Was: $2,799.95H&K MP5 "Action 3" 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. New HK German MP5 "Action 3" Bolt Group Complete...HKP-00129-BNow: $1,999.95Was: $2,799.95 -
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 -
On Sale
H&K MP5 9mm Complete IB Date Coded Bolt Carrier Group - Refinished
H&K Heckler & Koch
Now: $1,959.95Was: $2,629.95H&K MP5 9mm Complete Bolt Carrier Group - Refinished This refinished complete bolt carrier group is the perfect spare or replacement for you HK MP5. Offering reliable performance and durability, it ensures your MP5 stays in top working condition. The...HKP-99025Now: $1,959.95Was: $2,629.95 -
On Sale
H&K MP5 F Bolt Group Complete - BLEMISHED
H&K Heckler & Koch
Now: $2,499.95Was: $4,399.95H&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-BNow: $2,499.95Was: $4,399.95 -
Out Of Stock
H&K MP5 Firing Pin and Spring Set-Used
H&K Heckler & Koch
$0.00Used German HK MP5 Firing pin with new F/P Spring. Sold as a set, pull off's from trade in German MP5's.HKP-00666$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 -
H&K MP5F 9mm Full Auto Bolt Carrier
H&K Heckler & Koch
$1,949.95H&K MP5F 9mm Full Auto Bolt Carrier This 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...HKP-00092$1,949.95 -
H&K MP5K 9mm Complete Full Auto Bolt Group
H&K Heckler & Koch
$2,974.95MP5K Full Auto Bolt Group "F" Style Complete - German Each 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 assembly Extremely...HKP-00384$2,974.95 -
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 Half moon rollers. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the size you need to order - plus-size rollers increase the...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 Half moon rollers. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the size you need to order - plus-size 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 Half moon rollers. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the size you need to order - plus-size rollers increase the bolt gap...HKP-01063$284.95 -
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 Rollers Half moon rollers. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the size you need to order -...HKP-00227$284.95 -
Out Of Stock
H&K PSG1/MSG90 (7.62x51/.308) 23T - 40 degree Locking Piece
H&K Heckler & Koch
$0.00HK German 23T 40 degree Locking Piece HK German PSG-1 23T Locking Piece. This is 40 Degree. This is similar to the 30T locking piece only this has a 40 degree locking shoulder difference.HKP-00332$0.00 -
Out Of Stock
H&K PSG1/MSG90 (7.62x51/.308) 30T - 45 degree Locking Piece
H&K Heckler & Koch
$0.00H&K PSG1/MSG90 (7.62x51/.308) 30T - 45 degree Locking Piece HK German PSG-1/MSG90 30T Locking Piece. This is 45 Degree & Made of Titanium For the PSG or MSG Rifles. This is similar to the 23T locking piece only this has a 5 degree locking...HKP-00536$0.00 -
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