L1A1 FAL magazines or Inch Pattern. These are 308 caliber mags for the L1A1 receivers. These mags are for the L1A1 Self-Loading Rifle or Inch Pattern FAL as it is known in the US. Standard 20 round capacity mag. Solid, sturdy constuction for years of perfomance! To be honest these mags are in really good shape. I don't know if they have been refinished or not.