Shop › MESA SADDLERAIL 20" REM 6-12GA MESA SADDLERAIL 20" REM 6-12GA $297.95 Mesa Tactical 6-Shell Side Saddle, 12 Gauge, SureShell Saddle with Rail, 20", Remington 870 12 Gauge, Black 92130 Quantity: Add To Cart Added! Mesa Tactical 6-Shell Side Saddle, 12 Gauge, SureShell Saddle with Rail, 20", Remington 870 12 Gauge, Black 92130