This one piece base from Sun Optics covers the full length of the receiver of any short action caliber Ruger All American. It provides a solid and secure mount for any scope or other optic. The mount is precision CNC machined from T-6160 aircraft grade aluminum and hard coat anodized black. It accepts any type of Weaver-style rings or Picatinny mount.

Specifications and Features
Sun Optics SM4501
Full receiver length
Accepts Weaver-style rings or Picatinny mount
T-6160 aluminum
Hard coat anodized
Includes mounting screws
Black

Fits: Ruger All American short action