The Patrol SL is one of the best value AR rifles offered by Sons of Liberty. Available with either an 11.5” barrel, 13.9” barrel, or full length 16” barrel, the Patrol SL features a proprietary 4150CoMOV barrel with a 1:7” twist rate and a high pressure (HPT) rating. Other features of the Patrol SL include a Milspec buffer system with an H Buffer, a USGI Charging Handle, and a Liberty Charging Handle.