While looking for 5.56/.223 Bolt Carrier Groups (BCG) for the #WindhamProject I looked into replacing Windham Weaponry’s all black BCG with a Nickel Boron coated BCG from a few different manufacturers. I found WMD Guns and after a few months of finalizing a new coating they sent us one.
A New Coating
The new coating, as I understand it, is a double plating of Nickel Boron (NiB). The bottom plating is the standard silvery Nib with a top plating of a NiB-X Black. The NiB-X Black is 40% more wear-resistant than chrome (wear rating from the description sent with the product from WMD Guns).
I don’t want to give any thoughts outside of the look since I haven’t had it in my hands until last week. I will say that it is a cool looking BCG.
Style of Choice
The Real Reason
My biggest reason for the BCG change is the fact that the Windham 7.62×39 and 5.56 BCGs are both black. This makes it harder to distinguish in low light or with someone who has never used the rifle before.