RE: Why won't it Fit!!!
No, RedHead is an OEM China brand. Made by one of the companies that made Niko Sterling, BSA, and a couple other less than fantastic scopes.
If you look at the mag ring and the AO on many of the models, you'll easily see the same component parts. No company that makes $300+ scopes is going ot enter in the $20+ scope market...you can't cheapen them down enough. The only time you will ever be able to get a $20 scope...is if it's a copy of another scope OEM'd in China.