If it is a youth gun the stock will be too short for most adults, the designation "youth model" means it is made to fit young people. Unless you are extremely small it would be foolish to buy a youth model shotgun, unless you like punching yourself in the nose when you shoot. There are any number of adult 20 Gage shotguns on the market. I suggest you go to some gun shops, not the big box stores but the hometown type shops where people aren't selling guns on Monday and refrigerators on Tuesday and know what they are talking about when you ask a question about a firearm, and handle many different brands and styles of 20 Gage shotguns. Additionally, unless you are of very small stature you could probably use a 12 Gage without any problems unless you are recoil shy. If you know anyone who is reasonably savvy on matters of guns I recommend you talk to them and perhaps go shoot some shotguns before you buy one without any knowledge at all.