These are upgraded SSX23 followers for Novritsch / ASG magazines which feature:

• 4-5 additional BB capacity
• empty mag trigger locking
• larger pull tab for easier loading

These will fit inside Tokyo Marui mags but trigger lock might not work. Comes with a 2mm pin for installation.

⚠ MODIFICATION REQUIRED FOR OLDER STYLE MAGS TO MAKE USE OF INCREASED CAPACITY. WE RECOMMEND GETTING DRILL JIG KIT TO MAKE THE MODIFICATIONS! SEE THE DIAGRAM:

What's inside:

• 6x mag followers
  
• 1x 2mm pin for installation