全金属外衣

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• Automatically uses one of the player's blanks if they are about to take damage, preventing it. This can negate contact damage, which regular blanks do not normally prevent.
• This can also prevent damage caused by [香烟] , which is normally impossible to prevent.
• Grants one piece of armor.

• Fall damage does not trigger Full Metal Jacket unless the player has [旧式空响弹] .
• Because automatically using a blank does not count as damage, it protects the [古老纹章] and Glass Guon Stones from being broken, prevents guns like [北极星] from losing their bonuses, and prevents items like [节拍器] and [肉包子] from losing their bonuses.
• Due to its nature of preventing damage, it can be an effective method of gathering Master Rounds .
• When [危机石] 's effect is active, Full Metal Jacket still uses a blank when a bullet comes near.
• When damaged by harmful Status Effects , Full Metal Jacket will still use a blank, despite the damage not being caused by bullets.

• Its To Serve Android synergy is a reference to the real full metal jackets used by police, as well as Robocop .
• Also a reference to the short story "To Serve Man" by Damon Knight which was adapted for use as a Twilight Zone episode.
• The name of the item could be a reference to the Stanley Kubrik's Full Metal Jacket .
• In real life, full metal jacket ( FMJ ) bullet is one kind of ammunition that designed to have stronger piercing power.

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