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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HK91, G3 Complete Tungsten Full Auto Bolt Group
HKP HK Parts
$549.95HKP HK 91/G3 (7.62x51/.308) Complete Tungsten Full Auto Bolt Group US Made HK 91/G3 Full Auto Bolt Group Complete - NEW Each bolt group is built using HK factory prints, specs here in the US. As an added bonus each bolt group counts as two US parts for...$549.95 -
HK91, G3 Tungsten Full Auto Carrier - Made by EBO Under HK Contract
EBO
$199.95Used HK Contract Greek (EBO) F/A Date Coded Tungsten Filled Bolt Carrier. HK German G3 F/A date coded bolt carrier with the tungsten inserts. The tungsten inserts and upgrade is ideal for those that are having bolt bounce issues or want the smoothest...$199.95 -
HK MP5 40/10 High Impulse Locking Piece #25 US
RCM
$44.95MP5 40 & MP5 10mm High Impulse Locking Piece Marked #25 Made in the US from an enhanced material and heat treated to factory specifications. Each US-made MP5 40/10 60-Degree Locking Piece is used for high-impulse ammo commonly found in...$44.95 -
HK416, MR556 Ejector For Bolt Head
H&K Heckler & Koch
$23.95H&K HK MR556/416 Ejector For Bolt Head HK German factory part. Compatible With: HK MR556 HK 416$23.95 -
HK416, MR556 Catch- Firing Pin
H&K Heckler & Koch
$19.95HK MR556/416 Firing Pin Catch Compatible With: HK MR556 HK 416$19.95 -
HK33, HK33K, HK93 Bolt Carrier - Full Auto - US
RCM
$359.95HK 93, 33 & 33K Full Auto Bolt Carrier - US - RCM Brand new US RCM manufactured new style HK33/93, 33K factory bolt carrier. The finest HK bolt carrier ever made with the latest & greatest German inspired improvements and updates. Ideal for...$359.95 -
HK416, MR556 Extractor
H&K Heckler & Koch
$64.95HK 416 & MR556 Bolt Head Extractor New HK - German Compatible With: HK MR556 HK 416 CR556 HK M27$64.95 -
HKP HK MP5 (.40 S&W) Locking Roller +2
HKP HK Parts
$11.95HK US MP5 .40 S&W Locking Roller, +2 The proper roller size is essential for proper headspacing of bolt gap. +2 / 8.02mm Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the...$11.95 -
HK MP5 Weldment Set - 10mm / .40 S&W
HKP HK Parts
$189.95HKP MP5 40/10 Bolt Hold Open Weldment Set Complete Not offered or available anywhere else. This is the correct weldment set for the MP5 40/10 BHO components.$189.95 -
HK UMP Firing Pin Retainer Pin - .40 S&W / .45 ACP / 9mm
H&K Heckler & Koch
$7.95HK UMP Firing Pin - Retainter Pin This is the pin that trips the trip lever on the UMP lower. Compatible With: HK UMP$7.95 -
Out Of Stock
HK33, HK53, HK93 Bolt Carrier - Full Auto - Buffered Style - Used
H&K Heckler & Koch
$345.95HK German production HK German HK33, 33K, 93 Full Auto Bolt Carrier Used Buffered Style Hard to find, vintage HK German buffered style F/A bolt carrier. Perfect for a spare or to upgrade your clone or conversion to the factory correct latest style bolt...$345.95 -
HK21E, HK11E Firing Pin - Titanium
HKP HK Parts
$49.95HK21E, MM21E, 11E 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 weapon system. Get the lightest,...$49.95