A longer version for the Rossi AR15 Sentinel M-LOK is available and here is an overview video by the company. The Rossi Sentinel 10’’ is a nylon fiber and metal gun with an M-lock handguard, 20 mm top picatinny rail, folding and adjustable handle and sights, adjustable crane stock, metal crossbow, precision barrel with a diameter of 6.03 mm, hop up prowin, 14 mm CCW thread, metal gears, reinforced piston, 8 mm bushings, roller spring guide and flat trigger. It comes with a battery and charger.