Your rifle is worth around $1,000.00 Canadian new list price however you can get one on sale for around $820.00. As mentioned it is a tough time to sell any AR as the demanded has dropped off.
Your AR is a tier above many of the low cost guns available and made by a company that really cares about what they manufacture.
I can't suggest what would be a reasonable price but better to price it a little high hoping a buyer will understand the quality and be willing to pay that little extra for quality. Maybe check out the current retail price in your area and price it accordingly.