David Hogg, Marjory Stoneman Douglas High School mass shooting survivor-turned-gun control activist, tweeted on Friday that if you need an AR-15 to defend yourself, then you're a terrible shot.

Hogg was responding to a tweet saying an AR-15 is similar to a handgun in that it only fires one bullet with each pull of the trigger. The future Harvard student had tweeted earlier how he does not want to take anyone's firearms because he had grown up cleaning and shooting guns.

So you agree then. The AR-15 is just a semi-automatic gun just like a glock. One shot per trigger pull. I mean being the gun expert you are you would know this already, right? — Ryan 🇺🇸 (@konig__ryan) May 4, 2019

Hogg then responded you need more target practice if you need an AR-15. The popular modern sporting rifle typically comes with 30 round magazines, but they can hold more with larger magazines.

[Also read: Cory Booker plans national gun registry]

If you need an AR-15 to defend yourself you need more target practice because you’re a terrible shot. https://t.co/IDRkInhaCZ — David Hogg (@davidhogg111) May 4, 2019

Hogg's tweet comes shortly after President Trump invited two people who used an AR-15 to stop attacks on stage with him during the National Rifle Association's Annual Meetings and Exhibits.

Trump allowed Mark Vaughan, an Oklahoma County Reserve deputy, who stopped a knife attack that took place at work with his AR-15 that he had in his car, and Stephen Willeford, an NRA firearms instructor who stopped the mass shooting at a Sutherland Springs, Texas, church to share their stories.

"I immediately entered a building and ran down a hallway," Vaughan said. "And saw a man attacking a woman, in the neck and head, with a large knife. I yelled. He stopped, paused for a moment, and ran at full speed towards me. At about 18 feet, I fired three rounds from my AR-15 carbine."

Willeford said his daughter ran into his room to tell him about the shooting at the church across the street.

"I ran out the door and I told my daughter to load another magazine for me ... the Holy Spirit took over me at that moment and as I ran across the street, I yelled out," Willeford explained. "The gunman heard me inside, so did some of the people from the church, so did my own daughter. He came running out of the church and started shooting at me. I put two shots, center mass. He stopped shooting at me, ran to his vehicle."

Vaughan and Willeford have been credited with saving lives when they used their AR-15s to stop the attacks.