Mine hasn't broken yet, although I baby every airsoft gun I own with regular cleanings and what not. Even without all the cleaning I do to my airsoft guns, I feel confident the M3 would be reliable. The only downsides I have about the UTG M3 are the "shotgun elbow" one has for the first few weeks after purchasing it, and also the lack of hop-up in the bottom two barrels. If you're playing among springers or in a CQB situation, then the UTG M3 will be an effective primary, or perhaps secondary.