This rifle has a 16″ mid contour barrel with 1×8 twist, Mil-Spec M4 stock, CAR handguards with single heat shields, A2 flash hider and a dual aperture rear sight. The rifle also comes with 1 x 30rd and a CA approved gun lock.
Specifications:

Rate of Twist: 1-in-8″

Sights: Samson Dual Aperture Sight