What size tru-glo sight for 12ga 870?

[BrianF-Jax]

Can anyone tell me what size sight I need for my 870 12ga Super-Mag? Is it .250 or .375?

I've looked high and low and can't find this info! I'd measure it, but I'm at work.

TIA,

-Brian

 

[cjb]

.250!!
.375 is for the wide ribbed guns like Winchester 1300.

they also make 2 different size pipes now. I like the smaller ones myself!
CJB