This is an Echo1 P90. Runs great. Shooting about 300fps with .25g bbs so it’s great for CQB. Comes with the M4 box mag adapter that holds 1500+ bbs which feeds great. Also comes with 2 mid cap 120rd mags which also feed great. And comes with 3 high cap winding mags that don’t feed well. The problem is with the mags and not the gun. You may be able to work on the high caps and great them to work but I couldn’t. Also has a sling mount on the front and one one the rear. It does have one issue in that the semi-auto doesn’t function. It shoots full-auto in both settings. Seems to be a common issue with P90’s but doesn’t bother me since I use full-auto 99% of the time anyway. Let me know if you have any questions. $120 shipping or shoot me an offer.