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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HK G36, SL8 Retaining Pin - Firing Pin
H&K Heckler & Koch
$10.95H&K G36/SL8 (5.56/.223) Firing Pin Retaining Pin Compatible With: HK G36 HK SL8$10.95 -
Out Of Stock
$9.95 -
HK23E, HK13E Firing Pin
H&K Heckler & Koch
$109.95H&K 23E/13E (5.56/.223) Factory German Firing Pin New HK23E & HK13E factory German firing pin. These firing pins are no longer in production from HK. We have a limited number available and once they are gone, they are gone for good...$109.95 -
HK417, MR762 Upper Receiver Rod Tool
MI Midwest Industries
$159.95Midwest Industries Upper Receiver Rod Tool for HK417, MR762 Receiver support rod for HK417 and MR762 upper receivers. Designed to prevent receiver and index-pin damage during barrel nut removal, muzzle device installation, and other high-torque...$159.95 -
HK417, MR762 Cartridge Extractor
H&K Heckler & Koch
$94.95H&K HK MR762/417 Cartridge Extractor Compatible With: HK MR762 HK 417$94.95 -
HK417, MR762 Firing Pin - Titanium
HKP HK Parts
$49.95HK MR762 & HK417 Firing Pin - Titanium Grade 6 weapons grade Titanium manufacture. Made in the USA. A must have upgrade to have on hand as the firing pin is one of the most abused components in the HK MR 762 & HK417 weapon system. Get the...$49.95 -
HK91, G3 Bolt Carrier - Full Auto - Tungsten Filled
PTR
$299.95US-Made F/A G3, 91, and PTR-91 Bolt Carrier - Full Auto Carrier - Tungsten Filled PTR uses the exact Heckler & Koch specs and the same steel to manufacture their carriers. PTR uses HK factory blueprints for manufacturing & quality control. This...$299.95 -
Out Of Stock
HK MP5 Catch Screw, Bolt or Mag Follower - 10mm and .40 S&W - Threaded
H&K Heckler & Koch
$34.95MP5 40/10 Threaded Bolt Catch For Magazine Follower This is the small threaded screw that fits into the bolt-hold-open axle and makes contact with the magazine follower to activate the bolt-hold-open. A small but critical part is to keep spares on hand,...$34.95 -
HK MP5 40, 10 Roller - -4
H&K Heckler & Koch
$19.95HK German MP5 40/10 -4 roller Hard to find and essential for making headspace adjustments when necessary. Great spare to have on hand and no longer in production. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for...$19.95 -
On Sale
HK MP5 100 Degree Locking Piece - Sold As Is - Gunsmith Special
USA
Now: $7.46Was: $33.95HK MP5 100 Degree Locking Piece - Sold As Is - Gunsmith Special This US-made MP5 100 degree locking piece is the correct locking piece for all HK MP5-style forearms. This locking piece has also now become the factory correct locking piece for all HK...Now: $7.46Was: $33.95 -
HK MP5 Bolt Group - 9mm - Full Auto - Complete
H&K Heckler & Koch
$2,874.95H&K HK MP5 9mm Complete Full Auto Bolt Group This is a factory genuine HK German full auto bolt group compiled with the best German parts available for those that need the best parts on their beloved MP5. Last call on these as they are NLA and...$2,874.95 -
HK417, MR556, MR762 Index Pin Spring
H&K Heckler & Koch
$7.95H&K HK MR556/MR762/417 Index Pin Spring Compatible With: HK MR556 HK 417 HK MR762$7.95