Finally got it back from TNW. Problem w/ the over travel of the bolt seems to be fixed.:D i shot a full joystick of tula outside in 13 degrees last night as fast as i could pull the trigger and i did not encounter a single problem.
they are cash and carry in md. the gun does have many unique parts that are not AR spec but that is because it is a unique gun, not an AR. Also 99% of the parts are for sale on web site.
i have this one on an ar. its cheap but works well and is compact. http://www.amazon.com/UTG-Green-Sight-Adaptor-Flip-Open/dp/B004HIJCZK/ref=sr_1_5?ie=UTF8&qid=1388258282&sr=8-5&keywords=utg+red+dot