PSA built upper and lower in 5.56 NATO. The upper sports a 10.5 inch barrel with a 5.5 inch metal flash hider pinned and welded to make it a legal rifle, ambi charging handle, bipod vertical grip, flip up BUIS, extended quad rail with rail protectors. Lower has a Magpul grip with storage compartment and B5 buttstock. I’ve had this a long time and have put a couple a hundred rounds through it. No problems at all. $500 FTF in McKinney on weekdays and in Van Alstyne during evenings and weekends. Must be a Texas resident and legal to own and possess a rifle.