The FAL SA58 extended scope mount allows a full continuous picatinny rail when used with DSA’s rail interface handguard. Not for use with carry handle. The absolute thickest wall construction of any FAL mount made. Easy on/off locking system with 5 massive steel internal plates and 10 screws. 1913 picatinny rail for adjustable eye relief. Open rear design for easy removal of bolt and carrier assembly for cleaning. Large contoured ejection port to avoid case damage, extraction stoppage. Military grade and lightweight, only 10 ozs. Hard coat anodized black. Accepts all types of quality picatinny rings and has more surface area for securing rings than other mounts with open center Mfg: D.S. Arms