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 four major raffle items will be this year.
  • If your 2019 renewal application and dues payment has not been received, you will NOT receive future club newsletters nor have access to club facilities until your 2019 dues are paid. Use the membership application you received in the past months of newsletters or download the application from the link above.
  • Spring Hunters Education Course has been scheduled for April 6 & 7, 2010.
  • Please see the club newsletter page for our February 2019 newsletter with updates on upcoming club activities.
  • Clubhouse Rental (for Members Only) information can be found on our Clubhouse page.
  • To report lost or found items: cosclostandfound@gmail.com
  • Club By-Laws – If you wish to review the latest revised (Jan 8, 2018) by-laws, review this pdf
  • Is your home address up-to-date with our Membership Committee? If not, please let us know.