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 Recoil Rod Guide Ring - Recoil Rod Assemblies - Enhanced
HKP HK Parts
Now: $1.91Was: $2.39HKP Recoil Rod Guide Ring For Recoil Rod Assemblies - Enhanced New enhanced material for greater longevity and durability. Our US made recoil rod guides are the made from the strongest most durable material available much better than the basic nylon as...Now: $1.91Was: $2.39 -
On Sale
HK Locking Roller Pin - Bolt Head
H&K Heckler & Koch
Now: $8.96Was: $9.95HK Heckler & Koch HK Pin - Roller - Locking - Bolt Heads HK roller retainer pin or clamping sleeve (holds roller retainer plate in place). Each retainer pin works with all roller retainer plates & springs. All 3 types including oval-shaped...Now: $8.96Was: $9.95 -
On Sale
HK MP5, SP5 Locking Piece #27 - 90 degree
RCM
Now: $31.46Was: $34.95HK MP5, SP5 Locking Piece #27 - 90 degree Machined and properly heat treated from ordnance grade steel. A must have component for users running a suppressed set up or cycling a variety of ammunition. This will assist with fine-tuning pistol...Now: $31.46Was: $34.95 -
On Sale
RCM Rollers, + & - Sizes
RCM
Now: $8.05Was: $8.95RCM Rollers, + & - Sizes RCM US-made locking rollers are available in both plus and minus sizes, making them the ideal choice for adjusting bolt gaps. These rollers are the top-tier locking rollers on the market, delivering unbeatable performance and...Now: $8.05Was: $8.95 -
On Sale
HK MP5, HK94, MP5K Locking Piece - 100 Degree
RCM
Now: $31.49Was: $34.99RCM MP5, HK94 & MP5K 100 Degree Locking Piece Each 100-degree MP5 locking piece is the proper, correct locking piece for all HK MP5, HK94 and full-size clones as well as this is now the correct locking piece for all HK MP5K & MP5K-PDW variants,...Now: $31.49Was: $34.99 -
On Sale
HK MP5, MP5K Extractor - 9mm - Enhanced
HKP HK Parts
Now: $27.96Was: $34.95HK MP5, MP5K 9mm Extractor - Latest Generation Style HK Parts offers the finest US made 9mm "F" type extractor for all HK MP5/94 bolt heads. CNC'd from a solid billet of ordnance grade steel for superior function & durability. Each 9mm extractor has...Now: $27.96Was: $34.95 -
On Sale
HK MP5, HK94 Spring - Firing Pin
H&K Heckler & Koch
Now: $8.96Was: $9.95HK Heckler & Koch HK94, MP5 Spring - Firing Pin German Fits all of the MP5, SP5, SP5K, MP5K 9mm and 40/10 Variants including MP5, 94 clones. The firing pin is one of the most common repair and replacement items. Compatible...Now: $8.96Was: $9.95 -
On Sale
HK MP5, HK94 Spring - Firing Pin - Enhanced
HKP HK Parts
Now: $3.96Was: $4.95MP5 & HK94 Firing Pin Spring - Enhanced The "Enhanced" firing pin spring was analyzed and engineered from scratch with the latest in performance spring technology and an emphasis on reducing stress on the spring and increasing cycle life by 500%...Now: $3.96Was: $4.95 -
On Sale
UZI Recoil Spring
IMI
Now: $13.46Was: $14.95Uzi Recoil Spring Assembly Uzi factory IMI bolt carrier spring assembly complete. In perfect working order. Pulled from exc condition demilled Uzi firearms.Now: $13.46Was: $14.95 -
On Sale
HK90 Series Roller for Bolt Head 8.00mm - Standard
H&K Heckler & Koch
Now: $25.16Was: $27.95H&K Roller For Bolt Head 8.00mm - Standard The 8mm roller is the proper roller size for the standard "zero" function. The correct 8mm roller is essential for proper head spacing and bolt gap. New HK German, not surplus or used goods, that are worn...Now: $25.16Was: $27.95 -
On Sale
HK MP5, HK94 Recoil Spring
H&K Heckler & Koch
Now: $11.65Was: $12.95HK German MP5, HK94 Recoil Rod Assembly Spring Great replacement and spare recoil spring as this is a common repair and replacement item. Compatible With: HK MP5 HK94 Zenith, POF, AA Clones & custom buildsNow: $11.65Was: $12.95 -
Out Of StockOn Sale
HK Roller +8 - New - 8.08mm
HKP HK Parts
Now: $7.19Was: $8.99Roller +8 - New - 8.08mm HK Parts Standard (8.08 mm) locking roller, The proper roller size is essential for proper bolt gap. US Manufacture. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to...Now: $7.19Was: $8.99