Includes Bolt with Extractor & Ejector assembly, Carrier (M16 type), Cam Pin, Firing Pin, Firing Pin Spring, Firing Pin Retainer. Carrier is compatible with 416 Type Firearms as well as MR556 Firearms (both military/LE & commercially available Heckler & Koch® Firearms).

Ensure flawless reliability in your HK MR556/416 platform. Choose from original HK bolt carrier groups, US-made variants, enhanced carriers, chrome-lined options, complete bolt carrier groups, and semi-auto carriers.

Jul 15, 2023 · Do these 416 carrier markings look like those of a genuine, factory German made HK416 (not MR556 or any non 416) full-auto carrier?

H&K HK MR556/416 Factory Bolt Carrier With The Newer Style Bolt Retaining Key. This is the factory one-piece carrier that has the out-of-battery disconnect and the bolt retaining latch assemblies installed to make up the HK MR556 (556 Nato) carrier. Just add your bolt, firing pin, and firing pin spring to make a complete bolt assembly.

H&K Factory Bolt Carrier Group (BCG). This one also has the OTB drain port in the bottom as pictured . What you see is what you get.

BRN-4 Complete Bolt Carrier Group for 416 Type Firearms This Completely assembled BRN-4 Bolt Carrier Group is ready to drop into HK® 416, MR556 or other compatible upper receivers & firearms. Utilizing high quality materials, finishes and inspecti...

Aug 31, 2021 · Parts related to the HK416 and MR556 bolt carrier group.

New HK German 416 Bolt group. Rare component as the HK bolt groups are now considered EUC items and are not for sale from HK Germany. Each unit is factory fresh with all of the OTB upgrades. Includes: ***Not compatible with MR556 upper receivers***

Utilizing high quality materials, finishes and inspection criteria, this BCG provides great value as a replacement or build component. The Brownells BRN-4 bolt is machined from high performance 9310 steel, heat treated, magnetic particle inspected for defects and finished in Black Nitride.

Factory new Heckler & Koch HK416 complete bolt carrier groups (Germany).