This is a Matador arms MAT-9 10” upper on a NFA billet lower. It has a Odin works extended mag release and takes standard Glock mags. 3 included 3 26rnd and 1 33rnd. This a self contained blow back upper with a non reciprocating charging handle. Buffer tube can be taken off and any type pistol brace can be mounted. Since it’s self contained. The buffer tube has no purpose other than to mount the brace. I will include the Holosun 510 as well. It’s is shown with my rugged suppressor mount that will be removed, but includes a thread protector. Also comes with a new extractor rebuild kit and bolt buffer spare. I’ll also throw in a couple boxes of freedom munitions HUSH subsonics. Asking $800OBO. Prolly entertain some trades as well. Hit me up at 806570zero7nine7