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 UMP Caliber Conversion to .40 S&W Kit - 7.87" Barrel - 30 Round Magazine
Michaels Machines
Now: $849.95Was: $999.95HK UMP 40 Caliber Conversion Kit With this UMP Conversion kit, UMP .45 sub guns can be converted to .40 caliber. Machined bolt carriers are available for USC/UMP conversion sub guns. This is a simple drop-in conversion. The time required to change...HKP-18754Now: $849.95Was: $999.95 -
HK21E, HK11E, PSG1, MSG90 Firing Pin
H&K Heckler & Koch
$119.95HK German 21E, 11E, PSG1, & MSG90 Firing Pin New HK genuine 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. Compatible With: HK...HKP-01758$119.95 -
HK91, G3 Firing Pin - Titanium
HKP HK Parts
$34.95HK G3, 91 & PTR Firing Pin - Titanium Grade 6 weapons grade Titanium manufacture. Made 100% 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 G3, 91 & PTR weapon system. Get the...HKP-17937$34.95 -
HK MP5 Bolt Carrier - Full Auto - .40 S&W / 10mm / .357 SIG
RCM
$157.95MP5 40, 10mm - Full Auto Bolt Carrier Machined completely from billet ordnance steel. This carrier is made to the latest specs and are Tungsten filled and heat treated providing the finest American made carrier available. Compatible With: MP5 40 MP5...HKP-01192$157.95 -
HK MP5K Bolt Carrier - Full Auto - .40 S&W / 10mm - USA
HKP HK Parts
$149.95HKP MP5K 40/10 Full Auto Bolt Carrier Machined completely from billet ordnance steel. This carrier is made to the latest specs and is Tungsten filled, and heat treated providing the finest American made carrier available. Not to be confused with cheap...HKP-18362$149.95 -
HK MP5K, SP89 Recoil Guide Rod - Stripped
H&K Heckler & Koch
$14.95New HK German MP5K, SP89 Recoil Guide Rod Bar Incomplete Recoil spring rod stripped. Compatible with all MP5K & SP89 recoil springs.HKP-01693$14.95 -
On Sale
HK MP5 40/10 Standard 8mm Roller - BLEMISHED
H&K Heckler & Koch
Now: $12.95Was: $20.95H&K MP5 40/10 Standard 8mm Roller - BLEMISHED MEASURED 8.00mm ROLLER MARKED INCORRECTLY. PACKAGING MAY NOT REFLECT PRODUCT. CONDTION MAY VARY. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL...HKP-00338-BNow: $12.95Was: $20.95 -
On Sale
HK MP5K Carrier Weldment Tube
USA
Now: $19.95Was: $44.95HK MP5K Carrier Weldment Tube The MP5K carrier weldment tube houses and supports the carrier assembly in the HK MP5K firearm. Each tube ships raw/unfinished and is ready to weld into your build. Compatible With: HK MP5K THIS CLOSEOUT PART IS NOT...HKP-99062Now: $19.95Was: $44.95 -
HK G36K Factory Blank Firing Adapter
H&K Heckler & Koch
$269.95H&K HK G36K Factory Blank Firing Adapter G36K Factory HK blank firing adapter. This adapter is date coded and comes complete with the spring clip installed. Compatible With: G36K exclusivelyHKP-16974$269.95 -
$55.95 -
HK21E, HK23E Recoil Rod Guide Ring
H&K Heckler & Koch
$19.95HK 21E & HK 23E Recoil Rod All Steel Guide RingHKP-02063$19.95 -
HK MP5 Bolt Carrier - Full Auto - .40 S&W / 10mm
H&K Heckler & Koch
$339.95New HK German MP5 40/10 Factory F/A Bolt Carrier This is the latest and greatest version of the MP5 40 and MP5 10mm carrier. No longer in production or manufactured. Tungsten-filled German HK and the real deal.HKP-00452$339.95