Modern pistols and rifles now commonly include two-sided controls as standard equipment rather than optional extras. Early muzzleloaders and most semi-automatics placed safeties, bolts and magazine releases for right-handed users, while lever-action rifles and some revolvers already allowed more flexible handling from either side. Savage offered a left-handed bolt rifle in 1958, and the FN Five-seveN introduced dual safeties plus a reversible magazine button in 1998. The Heckler & Koch VP9 in 2014 and later Glock models added paddle releases and mirrored slide stops, with similar charging handles now appearing on AR-pattern rifles from Colt, Daniel Defense and others. Left-handed shooters plus anyone whose dominant arm is injured or confined gain quicker access, so everyday-carry firearms should include at least limited two-sided operation.