Thread: 2.0 Barrel Interchangeability - 9mm in .40 slide?
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Old 07-06-2019, 03:33 PM
KF7JA KF7JA is offline
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When changing to a 9mm from a .40, do I need to change the spring? I have both 115 and 124 grain ammo.
Gun is a M&P M2.0 compact 40.
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