Smith & Wesson Response, Semi-automatic Rifle, AR, 9MM, 16.5" Barrel, Black Oxide Finish, Black, B5 Systems California Compliant Grip, Fixed Stock, Free FLoat M-LOK Handguard, Optics Ready, 10 Rounds, 1 Magazine, Includes 2 FLEXMAG Adaptors, California Compliant 13978 • Action: Semi-Automatic • Capacity: 10rd • Finish: Black • Sights: No Sights • Barrel length: 16.5 • Overall length: 33.75 • Falt Face Trigger/ Interchangeable magwellsAccepts M&P and Glock Mags B5 Systems Compliant Grip M-LOK Handguard • Action: Semi-Auto • Capacity: 10 + 1 • Finish: Black • Sights: No Sights • Barrel length: 16.5" • Overall length: 33.75" • 15in Free-Float MLOK Rail/ Ambi Bolt Release