Hi guy's, I was wondering if there is there a 1 piece mount available for the BSA Maxi Grip scope rail. I've noticed it is quite wide and preferably like a reach back mount which I know Sportsmatch made for the BSA rifles to fix eye relief over the sloping rear block. I believe the Maxi Grip is 13 or 15mm wide. Any advice or pointers really appreciated. Many thanks. Derek