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  • Mainspring for STI 2011® 3.9" w/ Gen 1 VIP Grips, 9mm, 19 lbs., by Staccato 2011®

    Mainspring for STI 2011® 3.9" w/ Gen 1 VIP Grips, 9mm, 19 lbs., by Staccato 2011®

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