The only difference between the SOCOM 16 and SOCOM II is the Picatinny rails. The SOCOM 16 features a short length of Picatinny rail in front of the action, above the handguard, while the SOCOM II features a continuous top Picatinny rail from just ahead of the action to the front of the handguard, and shorter lengths of rail on the sides and bottom of the handguard. The extra Picatinny rails allow for more attachments, including scopes, grips, lights, and lasers, but also means the SOCOM II weighs , compared to the SOCOM 16's . Because the rails add weight at the front of the weapon, it is more muzzle-heavy than the SOCOM 16, making it more difficult for some users to engage multiple targets quickly.