Description
The ToolCraft Bolt Carrier Group is the “Heart of an AR-15.” The bolt carrier houses the bolt and resets the hammer as it moves within the upper receiver. The carrier also bears the brunt of the gas pressure during operation. This pressure moves it back to cycle the firing mechanism, and its performance is crucial to the proper function of your firearm.
In addition to having an attractive chrome colored finish, the Nickel/Boron finished BCG has a low co-efficient of friction and is wear resistant. Due to the columnar structure of the Nickel/Boron, the ToolCraft NiBor BCG is naturally lubricious and hard (70C+, on Rockwell scale).
The ToolCraft Nickel Boron BCG is an M16 Full Auto (Preferred for most AR-15 builds)
5.56 / .223 caliber
Bolt Carrier constructed from 8620 steel
Bolt constructed from 9310 steel
Gas Key constructed from 4130 Steel; Grade 8 Gas Key Screws
Mil-Spec O-Ring
Mil-Spec gas rings (3)
MPI inspected
Weighs 11.7oz
Made in the USA
Includes Lifetime Warranty from ToolCraft
SKU#: EATOOAUTO-016NIB
Comments (10)
My mistake. it is after getting my Echo trigger installed correctly.
Yes it is, it says it in the description. I just ordered one, this is a stupid good buy.
Yes it is.... just like the majority of BCGs on the market.
It says so in the description.
E Arms is fantastic! I bought an upper and lower from them and had it in two days halfway across the country.
Highly recommend them for parts..
It’d be good to see e-arms chime in on rather they’re an authorized dealer for the warranty. If so, I’ll be picking one up. Maybe 2 actually.
This is a good deal. but i would like to know if this was this plated by toolcraft or someone else?
Right, there’s that discrepancy for the lifetime warranty too, if it wasn’t purchased at an authorized ToolCraft dealer you are screwed.
Not full auto compatible