ATD sabre LED light

[68C15]

I have 4 of these. actually I used to have 4. now I have 3. this morning I was doing PS hoses on a 97 Tahoe and forgot my 60 LED light under the radiator hose and on top of the AC pulley. when I started the engine my light turned into a rocket propelled grenade. it flew across the shop about 25' and hit the drill press. the clear tube broke and damaged 2 of the surface mount LEDs. the thing still works but I need to replace the tube. I searched the ATD site and found part #s to get my Snap_on guy to order them but I am having trouble taking it apart.

has anyone done this on an ATD 80360? my other ones with normal LEDs I have replaced tubes without a problem. this one does not have the screw in the handle near the logo.