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 MP5 F & MP5 40,10 Recoil Rod Assembly
HKP HK Parts
Now: $39.96Was: $49.95MP5 F, MP5 40/10 Recoil Spring Rod Assembly Complete - Extra Power This is the correct MP5F or MP5 40/10 Recoil Rod assembly with the proper parts and size. Most commonly used for MP5's that are using +P or +P+ ammunition or any high impulse 9mm. Or for...Now: $39.96Was: $49.95 -
On Sale
G36, SL8 Bolt Head Ejector Pin
H&K Heckler & Koch
Now: $7.16Was: $7.95Bolt Head Ejector Pin For G36 & SL8 This item is the pin that holds the ejector & ejector spring in place. It is a common wear and replacement item and a must-have when doing bolt head maintenance.Now: $7.16Was: $7.95 -
On Sale
HK91, G3 Firing Pin Spring - Used
H&K Heckler & Koch
Now: $4.46Was: $4.95H&K 91/G3 (7.62x51/.308) Firing Pin Spring - Used This is a common repair and replacement item. Grab one for a spare, just in case.Now: $4.46Was: $4.95 -
On Sale
HK33, HK53, HK93 # 8 Locking Piece 53 Degree
RCM
Now: $44.96Was: $49.95RCM HK 93/53/33 # 8 Locking Piece 53 Degree New 53 Degree #8 Locking Piece for the HK 93, 33, C93 & V93 rifles. Made in the USA from ordnance grade steel, heat treated and made to last. A pefect upgrade for your well used or questionable C93 or C93P...Now: $44.96Was: $49.95 -
HK416, MR556, MR762 Extractor Spring Buffer
H&K Heckler & Koch
$14.95H&K HK MR556/MR762/416 Extractor Spring Buffer This buffer fits inside the extractor spring in the extractor pocked of the bolt. This item is a high wear item and a spare would be highly advised. Compatible With: HK MR556 HK 416 HK MR762$14.95 -
On Sale
HK German -2 Locking Roller Standard 7.98mm - Used
H&K Heckler & Koch
Now: $8.96Was: $9.95HK German Locking Roller Standard 7.98mm - Used The proper roller size is essential for proper head spacing and bolt gap. Used German German-made -2 or 7.98mm roller, each roller is priced per roller. Used HK German. HK locking roller, -2, 7.98mm. HK...Now: $8.96Was: $9.95 -
On Sale
HK416, MR556 Bolt Head Cam Pin
H&K Heckler & Koch
Now: $28.75Was: $31.95H&K HK MR556/416 Bolt Head Cam Pin New factory HK German manufactured cam pin for bolt group. A common wear and replacement item. Compatible With: HK 416 HK MR556 HK M27 HK 416 A5Now: $28.75Was: $31.95 -
On Sale
300 BLK Locking Piece
RCM
Now: $44.96Was: $49.95RCM 300 BLK Locking Piece New US manufactured 300 BLK locking piece for custom 300 builds or other custom 300 BLK HK style roller locked firearms. Compatible With: HK 93 & 33Now: $44.96Was: $49.95 -
On Sale
HK G36, G36K, G36C Bolt Carrier - Full Auto - Tungsten Filled
GSG9
Now: $494.96Was: $549.95HK G36 Tungsten Filled - Bolt Carrier Complete - Full Auto Compatible With: G36 G36K G36C Will NOT work with a factory HK SL8Now: $494.96Was: $549.95 -
On Sale
PTR PDW Bolt Carrier - Full Auto - 7.62x39, 7.62x51, and .308
PTR
$206.96 - $297.86PTR PDW (7.62x39) & (7.62x51/.308) Pistol Full Auto Bolt Carrier Made by PTR using the same blueprints and materials the German HK factory uses has allowed PTR91 to manufacture the finest of HK style firearms here in the US. The PDW F/A carrier is...$206.96 - $297.86 -
On Sale
HK UMP, USC Extractor - .45 ACP
H&K Heckler & Koch
Now: $44.96Was: $49.95New USC & UMP .45 Extractor - German Compatible with both the USC & UMP. Perfect for spares as they are prone to breakage and are a common wear item. Please Note: HK considers this a high wear and replacement item. Once it is removed from the...Now: $44.96Was: $49.95 -
On Sale
HK MP5, MP5K Extractor - Enhanced Coated Polish
HKP HK Parts
Now: $35.96Was: $44.95HKP HK MP5/MP5K Extractor - Enhanced Coated Polish Built for dependable performance, this polished and coated extractor delivers smooth cycling and consistent extraction. A great choice for both upgrades and routine replacements. Compatible...Now: $35.96Was: $44.95