These magazines are definitely very durable. The outside is made fully out of metal. Be careful if it's fully loaded because if you accidentally push down the tabs on the top, bbs will be flying everywhere. Easy to get in and out of the gun, can be a bit tricky to load them up though. On full auto, you can empty this in a couple seconds.
Good capacity on semi-auto
Go in and out of the gun easily
Could be easier to load them
The tabs on top can be pushed accidentally causing bbs to fly out
Empty in a couple seconds on full auto
Rating: [4 of 5 Stars!]