PHILADELPHIA (KYW Newsradio) — A Philadelphia City Councilman has proposed a ban on so-called ghost guns that are self-assembled and thus have no serial number. It was among a flurry of bills introduced at last week's session.

Thursday was the deadline to introduce bills and still have them pass by the time council takes its summer break. Members introduced bike lanes, zoning changes and amendments to how the city assesses hospitals, among other measures.

Councilman Kenyatta Johnson proposed a ban on guns that are assembled from parts purchased on the Internet. He says it's a loophole that allows felons and others restricted from gun purchases to own a deadly weapon.

"We want to be on the forefront and be proactive to be sure here in the city of Philadelphia putting together a ghost gun is illegal," Johnson said.

He also introduced a measure that would ban bay windows and balconies that protrude onto the sidewalk in the Point Breeze area. He says some developers have built them and they intrude on the historic character of many blocks.