Smith & Wesson introduces the M&P-15 300 Whisper rifle, an innovative M&P model chambered for 300 AAC Blackout. The Whisper can accommodate an A2-style flash hider, and features a single stage trigger and Realtree APG Camo finish. Also New from S&W: the Whisper black tactical upper, featuring a 10" free-float guard rail and Yankee Hill Phantom flash hider. This model is compatible with any Mil-Spec lower.