There’s no doubt about it; the AR-15 has gone mainstream. Over the last several years, the growth in demand for black rifles has lured many manufacturers (including the big guys) to introduce their own versions of the venerable Eugene Stoner direct-gas-impingement design. Now that the market has matured, Gun Tests magazine is seeing engineering departments introduce versions that are claimed to improve upon the original AR-15 through the use of gas-piston systems.
Gun Reports – Gun of the Week
