The rifle has 16" standard barrel 1x9 twist chambered in 5.56, flat-top receiver with low profile gas block. I have added a UTG Pro quad rail,folding fore grip, finger groove pistol grip, Magpul MOE stock, also has a CAA single point sling mount uninstalled. The scope and riser will be included. Scope is a Centerpoint brand red/green illuminated mil-dot reticle. I purchased this new and have put 400 rounds through it. Rifle will also come with everything that came with it new including 2 steel mags. I'm looking to do a mutiple trade for a sub compact 9(Glock,XD,XDM,Sig) I would prefer one with night sites but is not a deal breaker this is the main item I am looking for other items I am interested in are: EOTech .22 pistol (no revolvers please) Bull Barrel 10/22 or other .22 rifles AK Or ?? Here is a link to the DPMS website for all the specs on my AR Online Store — DPMS: AR-15 Rifles, Parts and Accessories.