This is a CZ 805 BREN S1 chambered in 5.56×45 NATO. This rifle features flip up iron peephole sights w/ adjustable rear peepholes. The rifle also features a full length picatinny rail along the top of the rifle for mounting optics and along the bottom of the barrel also a picatinny rail for mounting lights, Lasers, Foregrip etc. The rifle comes ready for mounting a stock as well as a muzzle break at the end of the threaded barrel. The rifle also features bi-lateral sling mounts on both ends of the rifle. Rifle comes with 1, 30 rnd magazine. Barrel length measures out to 11” with visible clean rifling.