GC_UPC Aero Precision M5E1 Complete Upper Reciever, .308, 18in Rifle Barrel, 1-10 Twist, 5/8x24 Thread, Free-Float Handguard, Cerakote, FDE, APAR308556M25 $622.24 APAR308556M25 show more like this Free Shipping on most orders over $49 Optics Planet