weaponslover: gunrunnerhell: Remington 870 Being one of the most popular pump-action shotgun models on the market, the 870 has its share of aftermarket parts. This particular example has the Mesa Tactical Urbino stock, which mimics the Benelli M4. It also has the Harris Tactical Full Rail System installed. Although it looks heavy, the rail according to Harris Tactical’s website only weighs about 1 pound. It doesn’t sound like much but given the amount of rails, it would be easy to go ...