Two men angrily flashed weapons at each other as they sped down the Expressway, State Police say

An Avon man who showed a gun to another motorist as they hurtled down the outbound Expressway this morning now faces a variety of charges, State Police say - adding they are still considering whether to charge the other driver, a Boston man, because they say he flashed a knife during the rolling incident.

According to State Police, the two got into it for an unspecified reason around 7:45 a.m. as they drove south just before Neponset Circle. Daniel Bates, 33, driving a Chevy pickup, displayed his steely manhood in the form of a handgun, State Police say. The other driver, not identified because he has not been charged, in turn showed Bates he was packing a weapon of his own - a knife - as he one-handedly drove his Honda CRV.

The operator of the Honda called 911, reported the incident, and remained on the line while giving dispatchers updated locations of both vehicles.

Braintree Police eventually located both operators on Hancock Street in Braintree. Upon further investigation, troopers located and seized a Sig Sauer P320 9mm handgun, which was in Bates’ possession. They also seized a folding knife from the operator of the Honda.

Bates was charged with assault with a dangerous weapon, disorderly conduct and disturbing the peace, State Police say. He is scheduled for arraignment in Dorchester Municipal Court.

Innocent, etc.