The Strike Industries .223/5.56 T-Bone Charging Handles come with the standard size latches.
It looks like the 450 Bushmaster uppers use a standard AR-15 charging handle which means the T-Bome charging handles should be compatible. However, we have not tested this configuration yet so we cannot verify fitment.
These Strike Industries .223/5.56 T-Bone Charging Handles will fit and function as intended with a 300 Blackout upper, as 5.56 and 300 Blackout use the same BCG.
These Strike Industries .223/5.56 T-Bone Charging Handles can be installed and utilized with or without a suppressor. It has the ability to direct gas to the right, left, or both sides of the charging handle whether or not you are running suppressed or un-suppressed.