I need 18350 that fit the FM body

[cmanley]

I have AW imr 18350 that fit. Do any Lion batteries fit?

 

[Strintguy]

If FM is Five Mega, they are too narrow for a lot of protected batteries

 

[DellSuperman]

I have no problem with the XTAR or AW 18350 in my FM Stainless steel e series lights

 

[cmanley]

Thanks I will look into them.

 

[fivemega]

If FM is Five Mega, they are too narrow for a lot of protected batteries

That is not true.
OP is talking about 18350
Many 18350 batteries will fit in FM18350 bodies and 18500 batteries will fit in FM18500 bodies.
Some protected 18650 batteries are fatter than 18500 and 18350 and may or may not fit in FM E series which is front (head side) loaded.