question about ULE and classic rails

[ZCute]

quote from www.airgun.com in the store
"Note: If you want to put this on an Automag/Classic or Minimag, you will need to press the twist lock assembly out of the rail."
im new to mags.....explanation on what i have to do?

[govnamac]

The twist lock is that piece on the rail that sticks up into the body to lock the barrel into place. If you look into the body from the front, it is that small thing sticking up. When you get a ULE body, take the rail totally off the gun, and from the bottom push it out. Might need a hammer to do it. Then re-assemble with the ULE body.