The DS Arms SA58 I Series of rifles is an improved and enhanced development of the tried & true and very successful FAL rifle in caliber 7.62x51mm NATO. Together with the historical features, reliability & ruggedness of the FAL design and the newly developed DS Arms modern upgrades the new DS Arms I Series of rifles has truly joined the past with the present to create the best battle rifle ever manufactured. This fully adjustable gas piston operated firearm allows for easy gas adjustment and easy takedown and cleaning. All I Series models (except the I.B.P. - Improved Battle Pistol) come standard with our B.R.S. - Battle Rifle Buttstock that still allows the rifle to "Fi Mfg: D.S. Arms