Kevin Muramatsu

Upgrading from a standard to a free-floated handguard can increase your AR-15’s accuracy potential, and it isn’t difficult following this procedure.

Common muzzle devices — flash hiders, compensators, muzzle brakes — are often-overlooked features when shopping for an AR. But they shouldn't be, as each enhances the rifle in its own way.

Now is a great time to add AR-15 optics to your rifle or carbine. In Part I, Muramatsu looks at the latest in red dot scopes for ARs.

Most factory handgun sights are all right, until the lights get dimmed. From then on tritium sights reign supreme.

From concealed carry handguns, to dedicated target blasters, to exquisite show pieces for the gun collector, there is something for every handgunner in this semi-auto handgun gallery from Gun Digest 2015.

Probably the easiest means of bettering your trigger pull is to install a modular AR trigger assembly. These have become all the rage. Kevin Muramatsu goes over the finer points of installing this quick and easy AR-15 upgrade.

The Boberg XR9-S looks kind of funny. The ejection port is situated rearward and the magazine looks backwards. But when you understand how it works, you realize this thing is the ideal concealed carry handgun.

The author builds a National Match AR from parts to be used in CMP competition.