This product was added to our catalog on Thursday 25 June, 2015.
5.56 EAC Bolt Carrier Group
The EAC™ BCG material properties are:
Carrier - Manufactured from 8620 steel, heat treated
Gas Key - Manufactured from 4140 Pre-hardened steel. Properly torqued and staked
Bolt - Manufactured from 9310 steel, heat treated and MPI inspected
Cam Pin - 8620 steel, heat treated
Firing Pin - 416SS, 35-38 HRC, polished to remove heat coloration
The EAC™ coating properties are:
Very Low Coefficients of Friction (µs & µk) – Exact numbers are confidential
Extremely High Heat Tolerance
Self-Lubricating – No Lubrication Required – Smoother Cycling
Virtually No Carbon Fouling
Coating Bonds to Steel – Not a Typical “Coating”
ASTM testing validates the highest standards for durability, ductility, thermal resistance, adhesion, hardness, and friction.
Guarantee – Lifetime for material coating and defects