Ar15 hbar 20" barrel 5.56 nato 1 in 7 twist. Standard mil spec trigger. I thought it was cool when i bought it. But then it sat for years and then i recently started thinking how many ar15 do i really need lol. Im just clearing space in the safe for new projects. Low round count i think the upper is a BCA. 550 and its yours. Thats what i paid foe it 8 years ago. I took pics of the bolt so you could see its barely used. Its best to text me.