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Notice: This is a private range. Club membership is required to use these facilities.

COSC is a family-friendly gun and archery members only club in Dimondale, Michigan promoting the safe and responsible use of firearms and archery activities in the Mid-Michigan area.

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

COSC 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, forests, waters, and wildlife.

  • See the January newsletter for all of the upcoming club activities. Be advised, activities are subject to cancellation due to weather or public health advisories from the State of Michigan. 
  • New 1-year and 5-year rates for NRA membership!
  • 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 11, 2021) by-laws,
    Bylaws January 11, 2021
  • Is your home address up-to-date with our Membership Committee? If not, please let us know.

21st Annual Camp Dinner – Saturday, March 7th, 2026

Social Hour at 4pm (BYOB) – Dinner at 5:30pm

Please mark your calendars for March 7th, 2026 for our Camp Dinner. The evening begins with Appetizers and looking at Raffles and Door Prizes. Dinner will follow at 5:30.

A donation of wild game would be very much appreciated and will get you a ticket to this event. My number is 517-974-6178. You can call or text me to set up a time for drop off. Our meetings are on the second Monday of the month, and the Wheezer Geezer Thursday morning get together is gearing up to start again….at least for coffee and donuts if you wish to do a drop off at either of these times.

New or gently used raffle items would be very much appreciated as well. Same contact as above.

Baked goods donations are always appreciated at the dinner. We have some wonderful bakers among our members. Please consider offering your favorite dessert to our guests.

Volunteers are needed to serve the dinner, it’s a buffet line with servers. This gets you in free of charge to the event.

I will need a few folks to help with clean up on Sunday morning around 11am. This will give you hours toward your volunteering to reduce your membership fee next year.

I hope you will join us for this day of fun, good food, and good raffle prizes. We only hold one fundraising event a year, and this is it!


CANCELLED – COSC Spring 2026 Gun Show

Due to unforeseen circumstances, the Spring 2026 COSC Gun Show has been cancelled. The Fall Gun Show is scheduled for Sunday, Oct 4, 2026. Mike Rhoads will be the gun show manager. Any questions, please call or text Mike at 517-643-5989.

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