In Uncharted 4 Multiplayer, your favorite gun can be modified to better suit your playstyle. By pressing while editing a gun in your loadout, you will be able to choose mods such as a silencer, a larger clip capacity, a faster reload time, etc. One thing to keep in mind is that more powerful mods will cost more LP to put in a loadout. Weapon mods are unlocked by using that weapon, once it is unlocked, to Down enemies in-game. Not all weapon mods are available for all weapons, however. See the following table for which mods can be equipped to each gun. Hero Weapons can carry two pre-set mods, but player-created weapons can only hold one.

Weapon Mods

Weapon Starting Ammo Reload Speed Clip Capacity Silencer Blindfire Accuracy Accuracy Recoil Aim Speed Zoom Speed Scope Sway Radar in Scope
Aegis 9mm X X X X X
Para .45 X X X X X
Raffica X X X X X
Fossa R-81 X X X X X X X
Pistole X X X
Revolver X X X X X X
Scoped Pistol X X X X X
AK-47 X X X X X X X
FAL X X X X X X X
Mazur LDR X X X X X X X X X
XCR X X X X X X X X
Mettler M-30 X X X X X X
MP34a X X X X X X X X
Spezzotti 12 Gauge X X X X
HS39 X X X X X X X
Copperhead SR7 X X X X X X X X X
M14 Custom X X X X X X X X X