I believe you are seeing the light reflection of off the front sight Azzy. I thought the same myself until I saw podup365's marker. It has the blade type sights seen on some pellet rifles. I've sent Podup365 a PM asking for more details on this very intriguing marker.
Worth noting. I asked Podup365 if that is him or someone he knows in the pic. The marker in this older pic has a long pump. Podup's has the short, knurled pump. The interesting suggestion is that there is more than one of these out there.
BPS: Unit of measure for the absence of skill. Prolonged exposure produces Trigger Zombies.
24th Paintball Grenadiers: Charlie Company 1st Gruppe www.scarecrow-paintball.com
Vintage Pumpgun Custom Work and Restoration.