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

  • 2019 Wild Game Dinner – March 23, 2019 is the date of this year’s Wild Game Dinner. Visit the dinner page to see what the major raffle items will be this year.
  • Spring Hunters Education Course has been scheduled for April 6 & 7, 2010.
  • Firearms trainings coming in April. See the newsletter and April calendar for dates.