Daniel Defense AR-15 M4A1 FSP Complete Upper Receiver 5.56x45mm 14.5" Pinned Surefire SF3P Flash Hider

This Daniel Defense M4A1 FSP AR15 style Upper Receiver Group was built for customers wanting a firearm inspired by USSOCOM SOPMOD Block II. This upper features the M4A1 FSP RIS II picatinny quad rail in Flat Dark Earth, a 14.5" M4 profile barrel, Mil-Spec F-Marked front sight base, Surefire SF3P flash hider / suppressor adapter, A1.5 Fixed Rear Sight, M16 profile full auto bolt carrier group, and Rail Mounted QD Swivel Attachment Point with QD swivel. FeaturesUPPER RECEIVER: Mil-Spec with Indexi