Since the recent purchase of my XDs .45 and Beretta PX4 compact 40, I have caught the gun and shooting bug. I've always loved firearms and hunting, but now it's gotten bigger. I would like to build an AR and have no idea where to start. I've researched parts and different websites with steps, but not sure which direction to go. What I would like to have is a rifle I can have fun with on the farm shooting targets as close as 10-15 yards, to something I could use for hunting deer. Possibly something I can swap out firing pins to change calibers for plinking with cheaper ammo. I like the tactical appearances, with a rail to possibly add accessories. Any and all help is greatly appreciated. Also, if you have websites with good prices, easy to follow steps, or anything else you feel I need that would be great.