MBUS weight: 38.3 grams
ARMS 40L weight: 47.0 grams
Besides the weight and price saving, one of the best features about the MBUS is the gross motor skill movement to get it in action. Where most other BUIS require a button, lever, or some finger dextarity to activate, the MBUS can be acticvated from any side. The left lever, right lever, or hitting the top with a chopping motion of the hand. If in the event a shooter loses a electronic dot in a fight, he would continue to shoot instinctivly throught the tube (optic) then find cover or at first lull or opportunity would chop the MBUS into action with one very fast efficient gross motor movement which in the end increase the shooters survivability rate.