The new parts in this upgrade....   I will remove your existing front sight then cut your barrel to the proper ballistic length of 23 inches.  Then I install a barrel band for your sling approximately 2" in front of the stocks tip.  I also install a new front sight with or without a hood.  That front sight will have your choice of NECG front blade.  Gold bead, fiber optic red or green.  A single blade rear sight is standard but can add multiple leaf's if you prefer.  I will then Glass Bed your Stock using Pro-Bed 2000.  Helping you understand the machining and hours of work that go into an upgrade is very important to me.  These upgrades are incredible.