I apologize for beating this to death, but if I buy some GI-type stick magazines for my 1927A1 Thompson, will they work "as is" or do I have to modify them to fit the gun? According to Auto-Ordnance's website, their magazines for the 1927A1 cost $55 each. Forrest inc, in Shotgun News, offers 3 30 round stick mags with a pouch for $45. What A Country offers 6 stick mags with pouch for $79. Do you think I'm better off buying from the factory or taking a chance with the above mentioned deals? Again sorry for beating this to death, but with the big price discrepancies, I just want to be sure. Thank you.