McMillan's AR-style semiautomatic rifle line includes the R79A Assault configuration in .223 Win for close quarters combat, the R79S Intermediate configuration with match barrel in .223 Win for intermediate-range engagement and the .308 Win R79L rifle for long range targets. All utilize Mil Spec components so a wide range of aftermarket accessories are available. Fully automatic versions of these rifles are available upon request for government and law enforcement buyers.