I use a Beltman Dual Layer Quick Ship with the internal stiffener. I pair it with a Milt Sparks VM2 and have no worries, complaints or back aches when carrying a full steel CCO. I know it’s not full size, as inquired about by the OP, but still not a light hand gun. I can’t heap enough praise onto the belt and the holster in this set up. Just about perfect in my opinion.