Product Description The LanTac .308 Enhanced Bolt Carrier Group (E-BCG) is a DPMS-style 308 bolt carrier assembly engineered for smoother cycling, improved reliability, and easier maintenance. The carrier is precision machined from 8620 steel and paired with a 9310 precision hard-ground bolt. The complete assembly is finished in electroless Nickel Boron (NiB) using LanTac&&';;s patented UCT EXO process-delivering extreme lubricity (reported friction coefficient of 0.02) and high surface hardness (82-85 Rockwell C) compared to standard NiB coatings. This enhanced design is built to run flatter with a smoother energy pulse, operate cooler and cleaner, and help reduce upper receiver pressurization when shooting suppressed. Product Highlights DPMS-style .308 bolt carrier group designed for smoother cycling and a flatter shooting impulse Precision-machined 8620 steel carrier with a 9310 precision hard-ground bolt Electroless Nickel Boron finish with patented UCT EXO process for extreme lubricity and durability Runs cooler and cleaner for easier maintenance and improved performance over extended use Helps reduce upper pressurization when shooting suppressed Specs Product Type: Bolt Carrier Group (Enhanced) Platform/Pattern: DPMS Style .308 Caliber: .308 Winchester Carrier Material: 8620 steel Bolt Material: 9310 (precision hard-ground) Finish/Coating: Electroless Nickel Boron (NiB) with LanTac UCT EXO process Reported Friction Coefficient: 0.02 Reported Surface Hardness: 82-85 Rockwell C UPC: 784672665315 Manufacturer Part Number: LA00300 Brand: LanTac USA LLC Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&&';;s manufacturer.