The handguard and upper receiver use a Picatinny rail system for attaching accessories such as a bipod or a telescopic sight.

The pistol's frame also has proprietary mounting rails for attaching accessories, such as a tactical light or laser pointer.

This would hook into a heavy leather belt with "D-rings" for attaching accessories.

Has a Picatinny rail on the barrels to attach accessories.

Give the rifle places to attach tactical accessories such as lasers, flashlights, and optics.

An integrated Picatinny rail can be found underneath the slide on the front of the frame for attaching tactical lights, lasers and other accessories.

Rails similar to this are found on numerous paintball markers, and are designed in order to attach accessories such as tactical lights or laser pointers.

These USB connectors let you attach mice, printers and other accessories to your computer quickly and easily.

Starting from the G7, there is a bayonet mount on the front of the camera around the lens to directly attach lenses and accessories.

USB cables let you attach accessories to your computer.