Welcome to Chief Okemos Sportsman’s Club!

COSC is a family-friendly gun and archery club in Dimondale, Michigan, located about 15 minutes west of Lansing.


To promote the safe and responsible use of firearms and archery activities in the Mid-Michigan area

C.O.S.C. Pledge

I give my pledge as an American to save and faithfully defend from waste the natural resources of my country, its air, soil, and materials, its forests, waters and wildlife.

Join or Renew your COSC Membership

Club Hours:  9:00 am to 1/2 hour before sunset, but not past 9:00 pm. Non-members MUST be accompanied by club members to use any of the shooting or archery ranges.

Club News

  • CPL/CCW courses have been added to the Firearms Training page. Take a look and schedule your classes.
  • Shooting sports have started. See the newsletter and May/June calendars for dates.
    • Jr/Ladies Trap
    • Adult Trap
    • Ladies, Ladies, Ladies
    • Blackpowder – Woods Walk April 27th