
This is a functional weapon reward, not a locker cosmetic or a battle drop. The Plastic-Bottle Shot Replica is a Splatoon Raiders crossover weapon with the same performance characteristics as the Tentatek Splattershot, giving eligible players a familiar competitive option with an unusual bottle-based design.
Version 11.3.0 is the required Splatoon 3 update, but installing it alone will not award the weapon. The game checks for two conditions: Splatoon Raiders save data must exist on the same system and account path used for Splatoon 3, and the main story of Splatoon Raiders must be completed. Starting Raiders without clearing its campaign is not enough.
Once those requirements are met and the update is installed, enter the Splatoon 3 lobby and use the Lobby Terminal. It is the interactable terminal in the lobby room near the battle-mode queue area, used to collect delivered gifts and other rewards. The Replica must be claimed there rather than earned through Turf War, Anarchy Battle, Salmon Run, or a separate menu.

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The crossover is more consequential than a themed giveaway because it links Raiders campaign completion to Splatoon 3’s weapon collection. Players who want the Replica should finish Raiders before checking the terminal, then ensure both games are being used through the same console save setup. Nintendo has described the 11.3.0 release as coming soon, without setting an exact deployment date.
The timing also places the patch ahead of Splatoon 3’s returning Summer Nights event, whose special Splatfest runs from August 22 to August 24. Its teams are Palace, Theme Park, and Beach, while local start times vary by region.

Practical takeaway: update to Version 11.3.0 when it arrives, verify your completed Splatoon Raiders save is on the same system, then collect the Plastic-Bottle Shot Replica from the Lobby Terminal before assuming it failed to unlock.