Rocky International Side Zipper Jump Boot Width:Regular Low profile Picatinny rail with Low profile Picatinny rail with a sight channel down the middle to allow the use of iron sights Two set screws secure the mount to the rear sight trunnion for a solid optics mounting platform Great for long eye relief scout scopes or reflex dot sights SKS gastube scope mount that replaces the factory gas tube and upper handguard Enhanced Mobility: The strategic design provides a superior fit and allows for effortless movement The contoured EVA footbed provides cushioning that will pacify your achy feet all public service boots begin to wear down