I bought the GF a Optic for her AR-15, the only problem is the A2 sight on her S&W M&P interferes. I have been researching the flip front sights with the gas blocks. I know very little about these style of rifles, I am more of a M1A and Garand shooter. For those of you who own these type of rifles which do you think would be better, A flip sight with Gas block or a Railed gas block and separate flip up sight?

Thank you


But who prays for Satan? Who, in eighteen centuries, has had the common humanity to pray for the one sinner that needed it most?

Mark Twain