BOSTON (AP) - U.S. Sen. Edward Markey is planning to unveil a new gun control bill he says will help reduce firearm violence.

The bill will focus in part on requiring handgun technology designed to increase safety. Markey is also planning to call for more federal funding for gun violence research.

The Massachusetts Democrat plans to outline the bill Wednesday at Project R.I.G.H.T., which promotes neighborhood stabilization and economic development in the Grove Hall neighborhood of Boston.

Markey has been a proponent of tougher gun laws and a vocal critic of the National Rifle Association.

Any gun control measure will likely face an uphill battle in Congress.

The Senate last year rejected a bill requiring tighter background checks for gun buyers and a ban on assault weapons. That bill was filed in the wake of the school massacre in Newtown, Conn.