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Upgrade your 5.7 x 28 pistol with the CMMG FNH FiveSeven 5.7 x 28 10-Round Extension Magazine. This magazine features a 10-round capacity and a saltwater-resistant, chrome silicon spring. Quick installation.
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Important Product and Safety Information
CMMG FNH FiveSeven 5.7 x 28 10-Round Extension Magazine