as long as you take your time, and make sure you know what you are doing.. you'd be fine to build. There are plenty of instructions for building online. That is, if you are fairly handy with assembling things.
The only nice thing about buying new... is warranty. Most places if you buy a complete upper, then a complete lower.. they will warranty it for each piece.. if you put an upper or lower together yourself.. you won't get the warranty... usually..
What type of range do you have to shoot at? Indoor, outdoor? If it's an indoor, check and see if they accept rifle shooting. my indoor range allows you to shoot rifles that have muzzle velocity up to so many fps, and also ft lbs of energy. I shoot my AR there just fine.
The only nice thing about buying new... is warranty. Most places if you buy a complete upper, then a complete lower.. they will warranty it for each piece.. if you put an upper or lower together yourself.. you won't get the warranty... usually..
What type of range do you have to shoot at? Indoor, outdoor? If it's an indoor, check and see if they accept rifle shooting. my indoor range allows you to shoot rifles that have muzzle velocity up to so many fps, and also ft lbs of energy. I shoot my AR there just fine.