Aero M4E1 Pro 16-inch Beginner SPR with Sig Tango-MSR

An Aero M4E1 Pro 16-inch set up as a beginner's SPR and range rifle, used mostly prone or from a bench. A Sig Tango-MSR 1-6x24 handles the glass, and the builder has already stretched it to 500 yards. A Radian Raptor, BCM BCG, Magpul MOE SL stock, Kung Fu grip and a Magpul M-LOK bipod round it out, with rail covers the owner designed and 3D printed.