Beware of Global Tactical Supply,LLC AKA Dennys Guns of 2001 Clay Street, North Kansas City, MO. They used to sell on the EE here on a regular basis. There is NO customer service and NO response by any means of contact. I only received one of two identical parts ordered, was charged for two. Nothing to indicate a backorder, and backorders normally are not charged till shipped. Have attempted contact multiple times by email, phone, US postal mail too. They do not answer my emails. They do not answer the phone and the voice mail is always full. They have not responded to my mailed letter either. Their web site is still up, so I guess they would still be pleased to take your money.