I have a new in the box Simmons Compact Red Dot 1 x 20 The manf. # is 511305. This comes with the built in Weaver-Picatinny base. This has never been out of the box as I never went thru with my usage plans for this product. This normally sells for 55.00 - 65.00 plus tax and shipping. I am able to sell it cheaper because I got the fall $10 rebate they had. The only thing missing is the label of the UPC code. I will sell, pack, ship and insure to the lower 48 for a total of 45.00 at my choice of USPS or UPS. PM me it you want it.