Red Dot Sights - (RD)
  This is a wonderful light weight sight for all types of shooting,
especially close in. The perfect sight for pistols, and ideal
for mounting on shot guns when hunting turkeys.
A small bright red dot (4 MOA) appears in the center.
You adjust the brightness of the dot with a 11-position
click rheostat. They come in BSA's Shadow Black
rubber coating, silver or matte black anodized finish.