Carbon Arms TWinS products include multiple types of shotgun shell holders that allow the use of loading TWo in Shotgun at a time.  The ergonomic and modular systems have been optimized for ergonomics, speed and reliability.  No other system on the market has the speed, testing and development of this system.

The average shooter can put on a SSL (chest worn) and cut their load times by 30% or more with 30 minutes of practice.  An average user, with a little more practice can reduce their load times by 40 to 50%.  The backbone and pinwheel allow the SSl clips to be worn on the belt instead of the chest.  You get the same speed and benefits of the SSLs, but worn at the belt level.

The FSL (belt worn) takes a little more practice to master than the SSLs, however significantly less than the traditional strong and weak hand load 4 techniques.