The Colt M4 Commando 5.56mm semi-auto lower receiver assembly with an “LE” serial prefix is an AR-15/M4 pattern component built for 5.56mm use. As a lower receiver assembly, it provides the semi-automatic fire-control foundation and manual safety selector interface to complete an M4 Commando-style build.

Key features

• Colt AR-15/M4 pattern lower receiver assembly for 5.56mm builds
• Semi-automatic hammer-fired fire-control function
• Manual AR-style safety selector
• “LE” serial prefix lower receiver assembly for Colt-serialized components

Use this Colt M4 Commando-style lower receiver assembly as the serialized foundation for a compliant semi-automatic 5.56mm build.