No trades. Won’t part out. More mags available for an additional price. Heavily upgraded by RA tech steel parts. If you want a GBB workhorse, this is it. The steel trigger group and bolt carrier greatly improved the gun’s longevity, and the anti-freeze kit made by AMG will make sure the gun function better in cold weather than other GBBRs. RA tech steel inner barrel coupled with the prommy purple bucking will give you amazing grouping at range. The AMG buffer spring increases the rate of fire to 23-25! The extended hand-guard makes the gun more customizable than a standard MK16. The best part, the MASADA style stock, adds to the gun both ergonomically and aesthetically. It comes with 6 mags. More mags are available. The optics is not included.