SKS Rifle Scope Mount Long Rail Improved accuracy-free floating design-scope mount secured to gas block-does not touch receiver, dust cover, gas tube or barrel 2 piece design-the scope mount base stays on the rifle & the scope stays mounted to the picatinny rail to be removed as one piece with no loss of zero. CNC machined billet 6061 black anodized aircraft strength aluminum-no casting to crack or fail It is a traditional rear sight when not using optics-takes less than 10 seconds to remove optics No gunsmithing-No drilling or tapping-No permanent alterations-Stripper clips can still be used for loading ammo with most extended eye relief scopes mounted !