alucard0822
For great Justice
Modular models that follow a standardized design are the direction most everything has been heading. GLOCK is relatively modular, but to the degree of a Sig 320, and whatever everyone starts producing to compete with it. The ability for a novice to swap parts around, and get the exact model, or range of models they like is a huge selling point, and makes the relatively high up-front cost of a gun more bearable as it can be upgraded down the road. Obviously it benefits 80% builders, and while growing, they are still probably a small part of the market. I think in the end it increases sales more than it limits them, know quite a few people that bought an AR, liked it, shot it, got another upper with a different barrel or caliber, put a few upgrades into it, then ended up buying another lower to reassemble the pile of parts into a 2nd rifle where they may have never really changed anything if the original rifle wasn't as easy to customize.