ATI folding stock, not ruger branded but you can find it on the ruger site with their brand. Adjustable position stock can accomodate body armor or be folded out of the way for storage. Has adjustable cheekpiece for different scope heights and shooters preference. Two moveable picatinny rails for tacticool lights or lasers or whatever you tacticool people like :thumbup: Shown here attached to my ranch rifle, which has been returned to its normal configuration. This is really a nice folder. asking $80, will include the polymer mags shown. Trades for ammo in .45 colt or acp, .45-70, scope, 1911 or officers acp gear.