4D Tactical Standard Retrofit Kit Style:ACH/MICH Combat Liner each color has 3 brightness

each color has 3 brightness settings

5 year hydro date

You can choose from 10 types CNC triggers with screw to adjust trigger travel

Pre-installed MOSFET

For various LCT LCK models

4D Tactical Standard Retrofit Kit Style:ACH/MICH Combat Liner each color has 3 brightness4D Tactical helmet pad retrofit kits are widely regarded as the best aftermarket helmet padding available. The pads are made of soft memory foam, they make putting your helmet on your head feel like putting a cloud on your head. The outer material is sewn together so it will not tear like glued pads from other manufacturers. Many other brands of helmet pads are not as soft nor are they as spacious and as a result give the user uncomfortable pressure