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
HK45 Compact, USP Compact Recoil Spring Assembly
H&K Heckler & Koch
Now: $80.95Was: $89.95Recoil Spring Assembly Complete With Captive Spring, Buffer, & Guide Rod A must-have spare part for your HK compact .45 pistol. New HK German factory fresh manufacture. Compatible With: HK USP Compact 45 HK USPC Tactical HK45 Compact HK45C TacticalNow: $80.95Was: $89.95 -
On Sale
HK91, G3 Complete Bolt Head - Enfield HK Contract - Used
H&K Heckler & Koch
Now: $129.95Was: $179.95HK G3 & HK 91 & PTR Bolt Head Complete - British Enfield - Exc/Like New Made On HK tooling & prints in the Enfield factory in Britain in 1988. Each bolt head is complete with the bolt head parts installed & 100% functional. Removed from...Now: $129.95Was: $179.95 -
Out Of Stock
HK91, G3, PTR F/A Complete Training Bolt Group
H&K Heckler & Koch
$0.00H&K HK G3/91/PTR F/A Complete Training Bolt Group Surplus HK German Plastic training ammo bolt group. To be used with the readily available and cheap plastic tipped training ammo only! A neat collectible item as only a small number were made...$0.00 -
On Sale
HK UMP/USC (.40 S&W/.45 ACP/9mm) Complete Recoil Rod Assembly
H&K Heckler & Koch
Now: $71.95Was: $79.95HK USC/UMP 45/40/9mm Recoil Spring/Rod Assembly New HK German. This is great to have as a spare as this is a repair and replacement item. Compatible With: HK UMP 45 HK USC 45 HK UMP 40 HK UMP 9mmNow: $71.95Was: $79.95 -
On Sale
HK33, HK53, HK93 Recoil Spring
H&K Heckler & Koch
Now: $8.05Was: $8.95HK German factory HK 93, 33 & 33K Replacement Recoil Spring Compatible With: HK 93 HK33 HK33K Clones or other custom buildsNow: $8.05Was: $8.95 -
On Sale
HK MP5, MP5K Stop Pin, Axle Set - Bolt Carrier
H&K Heckler & Koch
Now: $13.46Was: $14.95MP5 & MP5K Stop Pin, Axle Set For Bolt Carrier Each set is designed to keep the locking piece clocked at the correct location and in place when the stop axle and pin set are installed in the carrier. This item can become damaged...Now: $13.46Was: $14.95 -
On Sale
MP5 9mm Reverse Stretch Recoil Assembly
Now: $34.16Was: $37.95Complete Recoil Rod Assembly For The MP5 Reverse Stretch New US made MP5 reverse stretch or MP5 Full size compact recoil rod assembly complete micro polished and built of the finest materials to make the finest US made recoil assembly available. All...Now: $34.16Was: $37.95 -
On Sale
HK91, HK G3, PTR Bolt Head Complete - LIKE NEW
H&K Heckler & Koch
Now: $161.95Was: $179.95German HK G3 & HK 91 & PTR Bolt Head Complete - Used German "ID" Date Coded Made on HK tooling & prints in Germany in 1983. Each used bolt head is complete with all parts installed & 100% functional. Taken from live demilled German HK G3...Now: $161.95Was: $179.95 -
On Sale
HK MP5F, MP5 40,10 Factory Recoil Spring
H&K Heckler & Koch
Now: $13.46Was: $14.95HK German MP5 F 9mm & MP5 40/10 Recoil Spring - New Updated Version New latest HK German manufacture MP5 40/10 replacement recoil spring. Hard to find and a high wear and replacement item. Each spring replaces the MP5F recoil spring for the MP5 9mm...Now: $13.46Was: $14.95 -
On Sale
HK UMP, USC Firing Pin Spring
H&K Heckler & Koch
Now: $8.96Was: $9.95H&K UMP/USC (.40 S&W/.45 ACP/9mm) Firing Pin Spring This is a common wear and breakage item. This item also frequently becomes lost by end users when field stripping the UMP and USC Bolts. Compatible with: All HK UMP & USC FirearmsNow: $8.96Was: $9.95 -
On Sale
HK33, HK53, HK93 # 7 Locking Piece - 55 Degree
RCM
Now: $44.96Was: $49.95RCM HK 93/53/33 # 7 Locking Piece 55 Degree New 55 Degree #7 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 perfect upgrade for your well used or questionable locking...Now: $44.96Was: $49.95 -
On Sale
HK MP5SD Locking Piece - 9mm
H&K Heckler & Koch
Now: $161.95Was: $179.95HK German MP5SD Factory Locking Piece MP5 "action" SD locking piece is the current factory-correct locking piece for the MP5SD. For optimal results, use the action 3 or F bolt head for the most reliable feeding and extraction. These upgrades work...Now: $161.95Was: $179.95