High pressure tested (HPT) and magnetic particle inspected (MPI)
M16-cut carrier
Nickel Boron coating inside and out
Properly staked Mil-Spec gas key with Grade 8 hardware
Forward assist serrations on carrier body
Mil-Spec extractor spring, black extractor insert, Viton O-Ring
Shrouded firing pin
Available in Mil-Spec Phosphate coating and Black Nitride finish - advanced lower friction coating that minimizes the need for lubricants and cleaning