Colt M4 Commando 5.56mm Semi-Auto Lower Receiver Assembly

First%20responder%2C%20law%20enforcement%20and%20military%20sales%20only%0A%26nbsp%3B%0AProper%20%22M4%20Commando%22%20model%20designation%20engraved%20on%20the%20lower%20receiver%20with%20LE%20prefix%20serial%20number%20(example%3A%20LE123456).%20Limited%20production%2C%20exclusive%20LE%2FMIL%20product%20for%20ArmsUnlimited.%20Colt%20installed%20correct%20unnotched%20hammer!%20Available%20as%20title%201%20receiver%20or%20NFA%20registered%20short%20barrel%20rifle%20receiver.%0AFactory%20Colt%20M4%20Commando%20complete%205.56mm%20semi-auto%20lower%20receiver%20assembly%20to%20build%20your%20AR15%2C%20M16%20or%20M4.%20Compatible%20with%20all%20mil-spec%20AR15%2FM4%2FM16%20upper%20receivers.%20Manufactured%20to%20truly%20meet%20and%20exceed%20all%20Mil%20Spec%20standards.%20Marked%20with%20highly%20desirable%20%22M4%20Commando%22%20model%20designation.%20Rare%20and%20limited%20availability%20with%20LE%20serial%20number%20prefix.This%20item%20is%20a%20serialized%20part%2C%20considered%20a%20firearm%20and%20requires%20transfer%20through%20a%20FFL