Suggestion 1:
Item; Ammo Draining Grenade
Link/Images; Workshop link
Possible issues; Could be too powerful if not done right and might not be adjustable (read below), will need to add logs to whose weapons were disabled.
Why you think it needs to be added; There's currently no weapons like this one, and it could make for some interesting scenarios.
Extra Information; I'm not sure if it currently does this, but instead of instantly empyting weapon magazines, make it so it drains it at like 2 bullets a second, but they can still fire. Once they've reloaded the disabler no longer works, and make it so it only affects the weapon they're holding.
Suggestion 2:
Item; Dual Berettas / Dual Pistols
Link/Images; Workshop link
Possible issues; None, if balanced correctly.
Why you think it needs to be added; There's only 3 pistols available to everyone currently, Glock-18, Desert Eagle and the Five Seven. 1 is powerful, 1 is accurate and has a semi-high capacity and one is full auto. If the dual berattas are added, they would be an effective choice for people with certain playstyles. Since they have a much higher ammo capacity and can be fired very fast, they could be proved effective sidearms for snipers or as finishing off weapons.
Extra Information; Make it so they have the lowest damage per bullet, but have 30 rounds, use the standard pistol ammo, have moderate recoil and spread but make it so there is no delay in between shots so they can be fired very quickly.