I want an AR, preferably in 300 BLK. But Im on a budget. Also, Im new to ARs. Ive never owned one and Im unfamiliar with their unique design characteristics. It looks like there are a lot of aftermarket options to modify or improve an AR. Since thats the case, Im thinking about buying an OK AR with the intent of later upgrading those components Id like to improve. That way I can upgrade it as I can afford it or as parts wear out. Does this make sense as a strategy? What should I look for in a basic AR (300 BLK preferred)? Note: Ive used this strategy successfully when buying mountain bikes. Not wanting to pay for the top of the line, Ive bought moderately priced models with the plan of upgrading as things break or wear out. Its a good strategy with mountain bikes as components often break and last years hot technology is usually cheaper this year. So from a mountain biking perspective, I want a good frame. Everything else can be replaced piecemeal. Im not sure that holds true with black rifles.