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 News

  • It’s time to renew your COSC Membership for 2018! Visit the Join or Renew Your COSC Membership link, above, to print out the renewal application. Submit your completed application and 2018 dues to the address on the form.
  • NOVEMBER MEETING DATES CHANGED – General Membership meeting will be Monday, NOV 6th at 7:30 pm and COSC Board meeting will be NOV 27th at 7:30 pm
  • Please see the club newsletter on this site for our November 2017 news with updates on upcoming club activities.
  • The COSC Virtual Buck Pole is now open. Submit photos of your hunt to the online pole.
  • Clubhouse Rental (Members Only) information can be found on our Clubhouse page.
  • Club By-Laws – If you wish to review the newly revised by-laws, review this pdf.
  • Is your home address up-to-date with our Membership Committee? If not, please let us know.