Checkmate is a savings app with over one million users that have saved $$$ on brands like Mantis.
The Checkmate extension automatically applies Mantis discount codes, Mantis coupons and more to give you discounts on products like BlackbeardX: Dry Fire Laser Training System with Smart Analytics + Feedback.
Checkmate users have also been loving these products from Mantis.
Users have been saving products like this to their collections.