The weapon menu in Roblox Rivals is usually in the main lobby, opened from the shop/weapons icon at the bottom of the screen. From there, you can go into Weapons and choose or unlock a primary or secondary weapon; in match, some guides say you can open the loadout menu with M.

Where to look

  • In the lobby: tap/click the bottom shop icon, then go to Weapons.
  • In a match: press M on keyboard to open the loadout menu, then change weapons after respawning or before re-entering the fight.
  • If you do not see it: some players report the weapons UI may not show during a match or in the shooting range, which can look like a bug.

How it works

  • You may need keys to unlock new weapons before they appear in your loadout.
  • Once unlocked, you can assign the weapon to a slot and equip it.
  • Weapons are grouped into categories like Primary, Secondary, Melee, and Utility.

TL;DR: go to the lobby, click the bottom shop/weapons icon, then open Weapons ; in-match, try M for the loadout menu.