Which Commander should I choose, the Trailmaster edition or the MK4 edition? Trail Master version is durable and unbreakable thanks to its QTP material Trail Master weight is 420 grams, MK4 version weight is 577 grams Trail Master holds up to 28 grams of coffee, MK4 version holds up to 40 grams of coffee They all have the same terrible grinding stone made of nitrogen-enhanced stainless steel All spare parts are compatible between the two versions, except for the coffee holder container, as Trail Master has a different holder After knowing the difference, we recommend owning Trail Master for those who love mobility and want to grind at home, work and trips on a daily basis, as the grinder is characterized by a lighter weight and durability (unbreakable) and smaller size Advantages of the grinder: Lightweight, easy to move, durable 40 degrees of grinding with high precision and consistency (Moka pot, espresso, paper filter coffee such as V60, French Press, Cold Brew) Grinding stone made of nitrogen-enhanced stainless steel The coffee holder container can be used as a cup Coffee Commandante Trailmaster X25 Sand Color: Commandante's latest product, comes after extensive research to create a powerful and durable grinder Made of a special material, QTP - a high-performance material made of technopolymer and reinforced with large amounts of quartz grains QTP is safe for water and food, meaning you can use the pot holder as a coffee cup Other information: Dimensions: 200 - 160 - 55mm Body: QTP Grinding stone: Stainless steel Handle: European oak wood