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
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.
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.
- Lot’s going on with new Firearms Training Courses, Ladies shooting, trap, archery, and much more getting underway soon. See the latest newsletter for dates and times.
- We now have an email address for reporting things lost or found at COSC. Please be as descriptive as possible of the item(s) that you are reporting lost or found. This will help in reconnecting items with owners. Report lost or found items to
- Please see the club newsletter on this site for our April 2018 news with updates on upcoming club activities.
- Clubhouse Rental (Members Only) information can be found on our Clubhouse page.
- Club By-Laws – If you wish to review the newly 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.