High-End AR 15s: What Makes Them Different and Are They a Worthwhile Investment?

The AR 15 is the most popular rifle platform in the U.S. by a considerable margin, with millions sold every year. The popularity is understandable, as they are accurate, reliable, and exceptionally modular. Hundreds of companies have responded to that demand, flooding the market with AR 15s. Those rifles range from entry-level no-frills workhorses to high-end masterpieces of firearms engineering like the Knights Armament Company’s (KAC) “SR 15” models. If you have ever wondered what distinguishes a high-end model from its counterparts and if one is worth investing in, you are not alone.