F-Class Empty Chamber Indicators

MS F-Class folks, what are ya'll using for ECIs? And where are you getting them?

I always buy mine at the matches. Just those cheap yellow plastic flags. Also I think you can just remove your bolt if you forgot your flag. DOnt quote me on that though.

I usally have them at the match's in Bogue Chitto for sale at $1.00 each.
I order them from the NRA in the competition supply section.
A bag of 25 will cost you $15.00 plus shipping. Midway and some
of the places like Creedmore have them individually but they are
like $3.00 to $5.00 each.

Another source is CMP -- 12 for $3.99 -- not sure of shipping charge ...

https://estore.odcmp.com/store/catalog/catalog.aspx?pg=product&ID=244&item=&sfv=&cat=EQA&desc=&udc=&mct=&vndr=&ba=&pmin=&pmax=&note1=&note2=&note3=&note4=&note5=&max=