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Product Description
This is a steel M1913 picatinny rail for the Remington 870 MCS.
4140 Heat Treated Stress Relieved Steel with a parkerized finish.
This is a 8-40 thread pattern, not the standard 6-48.
This rail is designed specifically for the 870 MCS project. Original MCS Pattern.
May require gunsmith installation.
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stock_last_changed 2026-09-07T15:16:58Z
