AIM/Matrix charging handle extender.
Comes from Evike for 18 bucks. Made of steel, and fits directly over the stock charging lever.
It doesn't require removal of bolt, just loosen (don't remove) the five tiny screws and slide it on. When the screws are tightened it will feel a little loose, but its on securely.
The extender is much thicker than the stock lever, and gives a leverage advantage. I can rack back the bolt MUCH easier.
This accessory is worth the price. It makes the SVD a lot easier to cock, and rapid shots are possible where before, you'd be worn out after 5-10 rounds.