Accept no substitutes, when you have access to the original ArmaLite AR-10 Series A SuperSASS Gen II Semi Automatic Rifle. The SuperSASS stands for Semi Automatic Sniper System and this platform was originally designed for use by the US Military. Now you too can own this civilian model which is coveted by the most discerning shooters who demand superb accuracy. The SuperSASS is built with a 20 416R stainless steel barrel which has been treated with a durable Black nitride finish. Next you will notice the Magpul PRS Gen II stock which has a full range of adjustments. If you dive a bit under the hood you would come across the adjustable gas system which is built to accommodate suppressed and un-suppressed operation. The ArmaLite AR-10 Series A SuperSASS Gen II is the ultimate tactical rifle on the market today from the original manufacturer.This model has a 20 double-lapped, chrome-lined, chrome moly barrel, and a rifle-length gas system with an adjustable gas block. It features an MBA-1 lightweight precision buttstock, adjustable for length of pull and comb height.