CZ Bren 805 S1, 5.56mm cal. semi-auto carbine. Serial# C151893, mfg. Czech Republic. Like new condition, perhaps test fired. 16” cold hammer forged barrel has an excellent bore. Matte black finish is 99%. Steel flip up sights on full length rail. Integrated rail system with KNS Key mod plate. Adjustable short stroke gas system. Ambi- controls.  Folding adjustable stock. Includes one 30-rd. magazine. Smooth action, and nice trigger. Includes factory box, manual, test target and cleaning kit.  Quite handy and runs common AR-15 magazines. Very impressive.