$4 EA for the Blutler Creek, $3 EA for the Barska. $20 for all of them. There is only 1 rear flip up Bulter Creek pictured, 1 measures 40.03mm, the second (not pictured) measures 41.03mm. Also for sale: pair of 1" blued weaver mounts for $5 Trade for: 1911 mag in 9mm or 45acp, 1911 grips, ammo, 22/45 holster 5-1/2".