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985 Views 8 Replies 6 Participants Last post by  bubbat
AR_15, mil.spec.mag. Can you leave/store 20 rounds in a 30 round mag for extended periods of time without damage to the spring? How long?
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As I understand it from my engineer friends, the steel in the springs is worn out by use (loading and unloading - can't remember the term they used) and is not significantly deteriorated by being left stored at capacity. I leave my filled.
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