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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On Sale
HK USC, USC Bolt Carrier- Semi- Auto - 9mm
Michaels Machines
Now: $629.96Was: $699.95HK UMP/USC (9mm) Semi Auto Bolt Carrier The semi-auto bolt group is needed for HK USC to HK UMP caliber conversions. The full-auto bolt carrier will not work in HK USC rifles. Specifications: Tungsten Filled Heat Treated Parkerized &...Now: $629.96Was: $699.95 -
On Sale
HK MP5 Extractor - 10mm / .40 S&W
RCM
Now: $31.46Was: $34.95MP5 40 & 10mm Extractor - US Made This part is made to the exact same specs as the HK German extractor final polish included. It is also a great upgrade for the clone CA and Vector builds.Now: $31.46Was: $34.95 -
On Sale
HK417, MR762 Axle Extractor Retaining Pin
H&K Heckler & Koch
Now: $8.05Was: $8.95H&K HK MR762/417 Axle Extractor Retaining Pin This extractor retaining pin is constructed of durable, black finished, steel and is an OEM factory original H&K component. This retaining pin is designed to fit the HK417 & MR762 model of rifles...Now: $8.05Was: $8.95 -
On Sale
PTR-32 (7.62x39) Locking Piece - 70 degree
PTR
Now: $57.56Was: $63.95PTR-32 (7.62x39) Locking Piece - 70 degree New PTR Locking Piece For PTR-32. Marked "70" for the PTR-32 series of rifles and pistols. This is a 70 degree locking piece. New PTR manufacture. This locking peice will also work for custom HK builds as well.Now: $57.56Was: $63.95 -
Out Of StockOn Sale
HK91, G3 Complete Semi Bolt Group
HKP HK Parts
Now: $271.96Was: $339.95US Made HK 91/G3 Semi-Auto Bolt Group Complete - New Each bolt group is built using HK factory prints and specs here in the US. As a bonus, each bolt group counts as two US parts for US 922r compliance. Everything you need as a spare or a direct...Now: $271.96Was: $339.95 -
On Sale
HK UMP Bolt Carrier Guide
H&K Heckler & Koch
Now: $11.65Was: $12.95HK German All Steel UMP Carrier Guide This is the steel piece the guides the UMP bolt carrier. Compatible With: All HK UMP lowersNow: $11.65Was: $12.95 -
HK21 Bolt Carrier - Stripped
H&K Heckler & Koch
$549.95HK21 Heckler and Koch Factory FMP Stripped Bolt Carrier New factory surplus. HK Contract with FMP.$549.95 -
On Sale
PTR-32 (7.62x39) Locking Piece - 65 degree
PTR
Now: $61.16Was: $67.95PTR-32 (7.62x39) Locking Piece - 65 degree New PTR Locking Piece For PTR-32. Marked "32" for the PTR-32 series of rifles and pistols. This is a 65 degree locking piece. New PTR manufacture. This locking peice will also work for custom HK builds as well.Now: $61.16Was: $67.95 -
On Sale
HK MP5 40/10 Low Impulse Locking Piece #24
H&K Heckler & Koch
Now: $116.95Was: $129.95New HK German MP5 40 or MP5 10mm Low Impulse Locking Piece Marked #24 This is the factory 90-degree locking piece. Used for standard loads with low to average impulses. Compatible With: MP5 10 MP5 40 MP5 .357Now: $116.95Was: $129.95 -
On Sale
HK SP5K Bolt Carrier - Semi-Auto - 9mm
H&K Heckler & Koch
Now: $404.95Was: $449.95Heckler and Koch HK SP5K 9mm Semi-Auto Bolt Carrier German-made HK SP5K bolt carrier built to the factory semi-auto SP5K specification. This carrier features the correct SP5K closed-front design and semi-auto geometry, making it the proper HK part for...Now: $404.95Was: $449.95 -
On Sale
B&T TP9, MP9 Firing Pin
B&T Brugger & Thomet
Now: $40.46Was: $44.95B&T Firing Pin For B&T TP9, MP9 B&T MP9, TP9 firing pin. Original Swiss made Brugger and Thomet production in new condition. Compatible With: B&T TP9 B&T MP9Now: $40.46Was: $44.95 -
On Sale
HK417, MR762 Retaining Pin - Firing Pin
H&K Heckler & Koch
Now: $17.95Was: $19.95Heckler and Koch MR762 Firing Pin Retaining Pin This firing pin retaining pin is made from a durable, black finished, steel and is a factory original Heckler and Koch component. This retaining pin is made for the HK417 and HK MR762 model of rifles. This...Now: $17.95Was: $19.95