The TD3 is an open red dot designed for fast acquisition and a large window size (28x19mm!), while mounting with as low a profile as possible. Commonly, this red dot will be mounted on a pistol slide that is cut to fit an RMR-profile optic. Find out more about the TD3 here!
The solution was easy ... simply going to one of the toughest and most reliable electronic reflex red-dot sights available today - the Hi-Lux Optics MAX-TAC Dot sight. Thanks to the forgiving unlimited eye-relief of this sight, it has allowed me to turn a Traditions VORTEK Rifle & VORTEK Pistol combo into one extremely versatile muzzleloading modular shooting system