He doesn't like to take them back, but will.  I purchased one of his for the 1901 sight.  Somehow the sight slot got cut off center.  The handguard looked fine, until you put the sight on.  It would force the handguard to rotate left, leaving a large space between handguard and stock on the right.  We argued about the fit for awhile, I felt I'd have to remove too much to correct the problem, he felt it fit, probably didn't try it with the sight installed.  But, he did give me my money back, wouldn't replace it, and won't sell to me again.