Winchester 12 gauge 1400

Question
I was wanting to know if u can shot a slug
Though a full choke barrel and if I can get a
Slug barrel for it

Answer
You can but, I would not fire slugs though anything more improved cylinder. Pressure and recoil is punishing and likily not real good for the gun long term. There was a slug barrel made for these check http://www.gunsamerica.com http://www.gunbroker.com/ or http://www.gunpartscorp.com/
Any barrel marked 1400, 140 or 1500 will fit.