There is no mention of the Bushmaster M4 Type Carbine in the cites mentioned A 223 Bushmaster rifle is what is mentioned Also there is no need for unrelated AR 15 data being here where it is trivia at best Have removed the Original Research and WP SYNTH that a 223 Bushmaster rifle is a Bushmaster M4 Type Carbine Find a reference that states it was a Bushmaster M4 Type Carbine and that is a different cite and a different case But the present cites don t support the inclusion of what is at best unrelated trivia in this particular article Have removed this data which doesn t belong here