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Title: Don't buy it = Use Cable Lock Instead
Review: I bought this for my Glock 17 9x19 9mm handgun and this lock should not be used. For starters, you cannot put the lock behind the trigger. It has to go in front of the trigger to work. This causes the lock to be able to engage the trigger, thus making it able to be fired. Second and finally, the combination is very hard to set and I managed to brick mine so that it did not recognize any combinations. Luckily, it was not on my handgun at the time. What a waste of $12. I recommend you look up Project ChildSafe and get a free gun lock from your local sheriff or police department. Also, many handguns come with cable gun locks from now on that are way more effective.
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