Sumo - Height Adjustable Front Sight (30mm) Guardian They are sized slightly larger

They are sized slightly larger than the neck diameter so that they hold solid on the case

• 5/32" for Ruger 10/22 V-Block

Chamfer on the flash-hole leading-edge at the base of the primer pocket

The carbide size button is free floating on the decap rod allowing it to self center in the case neck

76” further forward than with a non-cantilever mount

Sumo - Height Adjustable Front Sight (30mm) Guardian They are sized slightly largerDesigned for precision long range target rifle shooting including the Palma Match, Sumo 30mm front sights are becoming the instrument of choice among fullbore rifle shooters around the world. Includes; Height Adjustable base (5 moa increments) 30mm sight tunnel with integral spirit level. (same tunnel as fixed height model) Front and rear shade tubes included Suits Sumo 30mm Rings or 30mm irises supplied by others. Optional +0. 5 or +0. 3 Dioptre lens