Spikes tactical lower, CMMG upper, only about 300 rounds through it. Flat top and has flip up rear site. I want $1450 for rifle with one magazine. I also have 3 more 30 rd pmags for $40. I also have 240 rounds of WPA 55 grain HP Steel case ammo for $120 and 400 rounds of American Eagle 5.56 FMJ for $300. Will sell everything for $1800.