First unveiled in 1997, the CR-21 has a sleek, futuristic design and uses the bullpup layout. This enables the rifle to be as short as a typical carbine, whilst still retaining the muzzle velocity of longer assault rifles. However, this makes the CR-21 only capable of being fired from the right hand as the ejection port is located on the back right side of the rifle. The port cannot be changed from side to side. This sight is mounted on a sight rail, allowing easy removal and attachment, as well as the use of a range of different sight options. The forward handgrip has been specially designed to be easily removed and replaced with an under-barrel
grenade launcher such as the
M203 grenade launcher. ==Variants==