American Tactical Mil Sport,, 5.56mm cal. semi-auto carbine. Serial #MSA009407. Excellent condition. 16" barrel has a 1/8 twist and has an excellent bore. Lantac brake. 15” Key Mod handguard.  Black. 6-position stock. Extended latch. KNS pins. Custom 3 ½ Lb flat bow trigger with reduced reset. One 30-rd. magazine. Black finish is 99% and nice. A premium build, a light and handy carbine.