explanation of weapon modding is needed...

[JR2576]

I've modded some weapons, but to figure out what can or can't be modded is impossible. There should be a visual indicator to show what can be modded. If I have the choice of buying 2 similar weaPons, the idea of modding can sway my decision. Some weapons you can some you can't mod. Some you can salvage, sell, some you can't. Then I have a sniper rifle which I added mod slots too, but can't put a mod in some of the slots, eventhough it has a mod slot and I have a mod for it.

[A s0t]

basic guide:
you need to be about level 50
DO NOT MOD the gun in your hand you have to UNEQUIP it first
DO NOT MOD when your about to lose connection, go into a load screen mp/ fast travel, server updates, defiantly NOT during the 10 minute countdown for the add mod slot
you need lots of green currency (scrap the grenades and the shields usually) and a weapon that is mod-able,
now you can mod most weapons.
when your in your inventory look at the gun description do you see 4 boxes? if yes you can mod it.
now the top box is for the stock
2nd box if for barrel
3rd box is for ammo/magizine size
4th box is scope
if you see pictures you can install the mod right away
if it a box with a dash in it, you have to "add mod slots" and it random (fun) it take like 10 minutes, and cost green currency, and more expensive if you do all 4 slots depending on the gun its 2,100 to 6,400 green currency

if the gun you find/buy has something in there you cannot break it down and get the mod, just what you install.

you want the mod back you have to destroy the gun
TO BUY MODS travel to Iron Demon Ranch. there a couple more spots too
YOU CAN NOT MOD SHIELDS/GRENADES, maybe they will update

im not responsible if the game eats your gun