The Nemo Arms BL-22ARC-20SS Battle-Light features a .22 ARC caliber and a 20-inch black threaded barrel. It has a 10+1 capacity and includes a Nemo Sage Gray aluminum receiver with a Picatinny rail, M-LOK handguard, and a Magpul PRS Lite black polymer stock.Key FeaturesAmbidextrous Safety Lever: The rifle is equipped with an ambidextrous safety lever for user convenience.Rate of Twist: The 20-inch barrel has a 1:7" rate of twist.