This is the Ruger BX-25 Magazine factory 25 round magazine for the Ruger 10/22.
It has a bunch of nice features including the same 30 degree angle steel feed lips as the Ruger rotary magazines, a constant force stainless spring, anti-tilt self lubricating follower and can be easily stripped for cleaning.
Will fit any Ruger .22 LR 10/22, 77/22 or SR-22 rifle.
Action Type: Semi-Auto
Capacity: 25-Round
Cartridge: 22 Long Rifle
Finish: Black
Make: Ruger
Material: Polymer
Model: 10/22, 77/22 or SR-22 rifle.
Delivery weight: 0.181kg