The Toxic Arms Nickel Boron Bolt Carrier Group is designed to make sure you have the most durable and reliable AR15 in any situation..
These Toxic Arms Bolt Carrier Groups come fully-assembled for easy drop-in installation on most Mil-Spec upper receivers.
This Bolt Carrier Group is designed for the AR15 – M16 -M4 – 5.56/.223 – 300 Blackout – 350 Legend and more.
The Toxic Arms Nickel Boron BCG is treated with their own special formulated SWD Nickel Boron coating which stands for Slippery When Dry.
This creates a dry lubricant and at the same time greatly enhancing both the strength and corrosion resistance of the parts.
Your weapon’s overall performance will definitely improve.