Customise your weapon according to the mission with <a href=" http://www.selfridges.com/GB/en/cat/nerf/" style="text-decoration: none"><font color="black"><b>Nerf</b></font></a>&#39;s Modulus Tri-Strike <b>blaster</b>. With interchangeable accessories that allow for three different ways to fire, you&#39;ll have power and versatility at your fingertips.