gaisericPRODUCT SPECIFICATIONS Precision-engineered from heat-treated 4140 steel, the Atrius FRS delivers uncompromising performance in a drop-in package. Experience forced reset technology without the wear and complexity of traditional FRT systems. Features Configuration: Safe | Semi | Super-Semi Compatibility: Mil-Spec AR15 (.223/5.56/.300 BLK) Installation: Drop-In Ready (No Modifications Necessary) Made in the USA Materials Finish: Corrosion-Resistant Black Nitride Material: Heat Treated 4140 Steel
