Originally Posted by
Mitch1352
Yes it does have the sear block. I will try it with a standard carrier (there should be one in my Noveske CQB 10.5 with Switchblock...which, by the way, is the best M4 type I have ever fired or owned!!! Ok, end of unsolicited Noveske endorsement :-) ). If it does not work, I will remove the 11 tooth AAC mount on it and buy another rifle.