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
HK416, MR556 HK417, MR762 Spring- Firing Pin
H&K Heckler & Koch
Now: $13.46Was: $14.95H&K MR556/MR762/416/417 Firing Pin Spring This part is great to have on hand as this item is a high wear and replacement part and one of the most common breakage parts on the HK 416/MR556 rifles. Compatible With: HK MR556 HK 416 HK MR762 HK 417 HK...Now: $13.46Was: $14.95 -
On Sale
HK German Roller +2 - Used - 8.02mm
H&K Heckler & Koch
Now: $7.16Was: $7.95H&K German Roller +2 - Used - 8.02mm Used HK standard (8.02 mm) locking roller. The proper roller size is essential for proper bolt gap. HK German Manufacture. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the...Now: $7.16Was: $7.95 -
Out Of StockOn Sale
HK MP5 Bolt Group - Complete - 9mm - Full and Semi
RCM
Now: $368.95Was: $409.95Complete Bolt Group - RCM - HK Style MP5 9mm Ideal to replace out of spec, worn or broken bolt groups or for that custom build. This is the finest US BCG available. Each bolt group comes complete, assembled ready to go. Includes: Bolt head complete 100...Now: $368.95Was: $409.95 -
On Sale
HK MP5K/SP89/SP5K 9mm Recoil Spring
H&K Heckler & Koch
Now: $10.75Was: $11.95HK German MP5K, SP89 Recoil Rod Assembly Spring This is a great replacement and spare part.Now: $10.75Was: $11.95 -
On Sale
HK MP5, HK94 Recoil Rod Assembly - US
USA
Now: $34.16Was: $37.95HK MP5, SP5, & HK94 Recoil Rod Assembly - Complete And Micro-Polished All stainless steel rods and ends. This is a great item to have on hand as a spare part. Compatible With: HK MP5, HK SP5, HK94 HK MP5SD HK MP5 full-size clones and...Now: $34.16Was: $37.95 -
On Sale
HK MP5, HK94, MP5K, SP89 Firing Pin - Titanium
HKP HK Parts
Now: $39.96Was: $49.95HK Parts Titanium Firing Pin for HK MP5, HK MP5K, HK94, and HK SP89 Grade 6 Titanium firing pin. Each was made using the factory HK specifications from original HK German blueprints. This is the finest US made Titanium firing pin available anywhere, at...Now: $39.96Was: $49.95 -
On Sale
HK91, G3 Firing Pin
H&K Heckler & Koch
Now: $17.95Was: $19.95HK G3, HK91, PTR 762/.308 Firing Pin HK German, new factory part made from steel. Great for spares as this is a common wear item. Compatible With: HK G3 HK91 HK PTR CETME & C308Now: $17.95Was: $19.95 -
HK MP5, HK94, SP5K 100 Degree Locking Piece
HKP HK Parts
$33.95HKP MP5, HK94 & MP5K 100 Degree Locking Piece Each 100 degree MP5 locking piece is the proper, correct locking piece for all HK MP5, 94 and full size clones as well as this is now the correct locking piece for all HK MP5K & MP5K-PDW variants, per...$33.95 -
On Sale
HKP Roller +1 - New - 8.01mm
H&K Heckler & Koch
Now: $8.09Was: $8.99Roller +1 - New - 8.01mm HK Parts Standard (8.01 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: $8.09Was: $8.99 -
On Sale
HK Roller Type Trip Lever
H&K Heckler & Koch
Now: $26.95Was: $29.95H&K Roller Type Trip Lever This is a genuine German Heckler & Koch part. This is the newer style trip lever for use with a roller sear catch, not the older friction type. Please Note: May or may not be marked with the X or XX...Now: $26.95Was: $29.95 -
On Sale
HK MP5K/SP89/SP5K 9mm #28 Locking Piece
H&K Heckler & Koch
Now: $178.16Was: $197.95H&K MP5K/SP89/SP5K/SP5K PDW 9mm #28 Locking Piece This is the locking piece that is recommended when using a suppressor and 147-grain or heavier bullets. This will slow the rate of fire while suppressed to safe levels. This locking piece is 80...Now: $178.16Was: $197.95 -
On Sale
HK MP5, 90 Series Roller Locking Plate - Original Style
H&K Heckler & Koch
Now: $39.56Was: $43.95New HK German Roller Retainer Plate For Rollers Original-style roller locking plate. This item is a common wear item that is great to have on hand as they are one of the top items that break or fail with use. Compatible With: HK MP5*** HK...Now: $39.56Was: $43.95