I mounted the x40 but never fired it. It is perfect in every way. $785 The x50 Illuminated reticule is also like new----not a scratch, perfect glass and function. It has been fired about 100 rnds. $1100 One or the other has to go. Leupold Tactical Rings are included in the purchase, free. These are genuine Leupold purchased in Oregon direct from the factory. Partial trades considered: Stoeger Coachgun, Mossberg 930 SPX, Remington Police 870.