Features: •Threaded Barrel with A1-Style Compensator (1/2 x 28" Thread) •Two-Position Receiver Mounted Safety Lever •Functioning Charging Handle •Bolt Catch •Recessed Magazine Release •Ambidextrous Load-Assist Button •Match Grade Precision Barrel •Lightweight, High-Strength Polymer Upper and Lower Receiver with Integral Steel Inserts •Lightweight, High-Strength Polymer Quad Rail Handgun •6-Position Collapsible Stock The new M&P15-22 is a dedicated M&P15-format rifle designed and built as a true .22 LR semi-auto from the ground up, with all the standard operating features and accessory specifications of a modern-version centerfire M&P15 rifle.