The Titan XP Carbine kit for the Firststrike XP

The Titan Xp carbine kit for the Firststrike XP has a quad rail set up that allows you to be as creative as you can be in regards to accessories the kit comes 8 shot mag extender and the Titan pro floating  buttstock 
(Folding grip sliding stock and red sites as seen in the pictures, to be purchased separately and are not included)