Colt M4 Carbine semi-auto complete lower receiver LE trade-ins that are in very good condition.. These have the LE prefix serial numbers. They are marked "M4LE COLT LAW ENFORCEMENT CAL 5.56MM" on the left side of the receiver with the bullet logo on each side of the M4LE stamp. They are marked "RESTRICTED MILITARY/GOVERNMENT/LAW ENFORCEMENT/EXPORT ONLY" on the right side of the receiver. |
