Nerf N-Strike Barricade RV-10 (with bonus stock attachment) Special Value Pack comes with bonus stock attachment. Motorized semi-auto blaster features a 10 dart revolving barrel for action-packed blasting excitement. The compact design of this sidearm blaster means it&#8217;s easy to take along on any mission. Quick and reliable, your revolving barrel blaster is the one to turn to when you&#8217;re outnumbered. Blaster comes with 10 Whistler darts and instructions. Requires 3 &#8220;AA&#8221; batteries (not included).