Anyone that needs a shotgun drilled and tapped , a base modified , or any gunsmith services, give me a call 912 253 0654. My name is Bryan Strickland located in Hazlehurst, Ga. I charge 65.00 to drill and tap a receiver . This includes lock tighting the base on the receiver. You pay for shipping. I have references, My number 1 customer is JEBS chokes.