A Look at Debate Over Assault Rifle Used in Orlando Nightclub Massacre

Suspect Omar Mateen used an AR-15 style rifle, a Sig Saucer MCX, that he purchased legally to carry out the mass shooting, again raising questions about gun laws.
7:03 | 06/15/16

Coming up in the next {{countdown}} {{countdownlbl}}

Coming up next:

{{nextVideo.title}}

{{nextVideo.description}}

Skip to this video now

Now Playing:

{{currentVideo.title}}

More information on this video
Enhanced full screen
Explore related content
Comments
Related Extras
Related Videos
Video Transcript
Transcript for A Look at Debate Over Assault Rifle Used in Orlando Nightclub Massacre
cc1 Test message Test Text1 underline Test Text1 itali is. The killings in Orlando bring a contentious debate, especially when it comes to The vast majority of Americans I believe are like me. I support the right for an American to own a gun and like any other right we have, there are going to be restrictions. We could allow our citizens access but do it in a much smarter way that would save a whole lot of lives. Reporter: Too late for the 49 lives taken in Orlando. No doubt there will be more in the days and weeks to come. We'll be back in the moment. ABC news "Nightline" brought to you by purina. Never be good. Purina believes it can. Inspecting every ingredient for quality? That's big. Being confident that your pet's food is 100% safe? That's big, too. Spending more healthy years with your best friend? That's amazing. Big is exciting... Daring... For everyone. Pets don't just make life better - they make it bigger. Purina. Live big beating) Fight heartburn fast. With tums Chewy Delights. The mouthwatering soft chew that goes to work in seconds to conquer heartburn fast. Tum tum tum tum. Chewy Delights. Only from tums. ♪ ♪ ♪ Take on the unexpected with a car that could stop for you. V Nissanp Safety Shield Technologies, T available in the Altima, Sentra and Maxima. Aches? What knee pain? What sore elbow? Advil liqui-gels make pain a distant memory Nothing works faster Stronger Or Longer What Pain? Advil. Do well? This clean was like - pow. It felt like I had just gone to the dentist. My teeth are glowing. They are so white. 6x cleaninga, 6x whiteningaa In the certain spots that I get very sensitive... ...I really notice a difference. And at two weeks superior sensitivity relief to Sensodyne I actually really like the two steps! Step 1 cleans and relieves sensitivity, step 2 whitens. It's the whole package. No one's done this. Crest - healthy, beautiful smiles for life. ♪ What are you doing? Sara, I love you,

This transcript has been automatically generated and may not be 100% accurate.

{"id":39866203,"title":"A Look at Debate Over Assault Rifle Used in Orlando Nightclub Massacre","duration":"7:03","description":"Suspect Omar Mateen used an AR-15 style rifle, a Sig Saucer MCX, that he purchased legally to carry out the mass shooting, again raising questions about gun laws.","url":"/Nightline/video/debate-assault-rifle-orlando-nightclub-massacre-39866203","section":"Nightline","mediaType":"default"}