This is a LanTac USA LLC Bolt Carrier Group known as the M16, model E-BCG.
Lantac's new BCG is precision machined from 8620 Steel with a shot peened bolt manufactured from Carpenter 158 and Magnetically Particle Inspected. The entire carrier assembly is NiB" Electroless Nickel Boron coated with the patented" advanced UCT EXO process" unlike standard NiB coatings. This offers extreme lubricity with a friction coefficient of .02 and surface hardness of 82-85 Rockwell C.
Features:
Runs Flatter with a Smoother Energy Pulse
Runs Cooler and Cleaner
Less Upper Pressurization When Shooting Suppressed
