I know the blades are replaceable but is it possible to resharpen them instead of replace them? Just curious.

You can resharpen them as long as they dont get all dinged up. The thing about replacable blade heads is that the blade edges are so thin that the get bent and dinged up easialy, thats why they are replacable. Ive personaly shot a striker into my block target upwards of 30 to 40 times and it would still shave the hair off my arm. I would just pick up a back of replacement blades, but under some instances you can touch up old blades.

It is but the only product I have found that works for those types of blades the the KME broadhead sharpener. You can do a google or yahoo search and find the website. I believe the sharpener is around 30.00 bucks but well made and will last a lifetime.