Check the listing for details. Benjamin pistols & rifle rear sight. Condition: New. Listed at 16.95 USD. Benjamin pistols & rifle rear sight. Included 1 elevation & 2 sizes of mounting screws. Benjamin rifles made between 1954-1956 also uses this sight. Originally they had a slotted set screw. Elevation screw here is an Allen head style 3/16" length. I am not the USPS!!! Repeat I am not the USPS!!! If you did not receive you item but tracking says it has been delivered, DON'T TAKE IT OUT ON ME!!! Contact your nearest Postal Service. Morons!!! I did my part. To my valued customers & future customers. I have recently received a negative feed back from a M-r-n. He/she stated that they never received a pump cup from me & that it was never sent. If he/she is able to read & use the tracking # they will see that it was sent out from my post office. I have no control of the USPS. M-r-n never got the part, but I refunded their money & still got a negative feed back!!!. Here is the tracking #9400108205496176663791. See for yourself.