I have a McMillan M40 stock on my Milspec that has the Wichita sling swivels. The studs too large to screw in a standard swivel stud for use with the Harris bipod. I know a few guys that have popped the swivel loop out and ground the base to fit the Harris. I would prefer not to grind them and was wondering if anyone new if anyone produced standard studs with the same shank size as the Wichita, for use with the Harris Bipod. Thanks.