Surplus FN 10.3 Socom Barrel Assembly
Crane Spec MK12 Gas Block & Carbine Gas Tube
Daniel Defense RIS II Barrel Nut
10.3" 1/7 Twist Rate
Dated 2018
May or may not be Cage Coded 3S679
5.56x45mm Nato
Throat Erosion & Headspace Well In Spec
You do not see these 10.3 SOCOM's in the FN variant very often, especially as a complete unit ready to install!
