I have for sell or trade two brand new Larue Tactical mounts. First, an SPR-E (LT-139) set up for a 30mm tube. I'll sell for $200 shipped. Second, a .50 BMG QD (LT-107) set up for a 34mm tube. I'll sell for $250 shipped. Both are brand new. I am looking for an SPR/M4 (LT-104) set up for a 30mm tube. Please contact me if interested. Thank you, Raynik71 I just sold the spr-e. I found my spr/m4 and have purchased it. I still have the LaRue LT-107 for sale. Thanks!