What are the differences between 4.5mm and 5.5mm folding trunnions

I have a draco that I want to install a folding triangle stock on, but I'm not sure which size trunnion to opt for.

Want to Sell Yugo furniture and Romanian Fixed Trunnion

For Sale (all prices are shipped): Yugo maple stock set (slight refinish with boiled linseed): $60 Romanian fixed trunnion: $35

$35.00

Gun Talk Saiga 223 Conversion

I'm planning on going through the process of converting a 223 saiga into a 102 and wanted to get a list of all the parts I'll need, from my...

Sold AK 100 Russian Handguard Retainer

Not sure what the going rate is for this, PM if you have one we can discuss. EDIT: Found one on the files

$70.00

Gun Talk Rail discussion

Can someone identify this rail? It appears to be Zenitco but looks a little different.

Gun Talk Reliable Zenitco Dealer

Looking to get some Zenitco to larp in my moms basement with my wife’s boyfriend, any idea on who’s a reliable seller at the moment?

Gun Talk Weird Russian flare gun/baton

Does anybody here know anything else about this thing other than what was translated from this German collecting book... It looks like you just...

Gun Talk What are the differences between 4.5mm and 5.5mm folding trunnions