sk68 extender ?

I have just ordered a few sk68, one of them is for a coworker. He doesnt want to deal with rechargeables so he wont get the brightness of a 14500, I’m wondering if there is a aa extender tube that will fit the sk68 then he can use 2 alkaline aa, it should be bright and will get a great runtime, any thoughts?
Thanks Chris


Thanks ohaya,
just what I needed.