The improvements of the IMod are as follows: Integral, but removable non-slip buttpad (color matched to stock components)
- Rolled/angled buttpad toe with wide traction area. This will assist in running the stock high on shoulder, making the IMod system more user friendly when using web-gear and/or body armor.
- Improved lock paddle, making it easier to operate and making the contact surface non-slip when operating the lever.
- Removed most sharp edges that may cause “snag points” to web-gear or other vital equipment.
- Improved strength throughout construction of the stock chassis. This will provide maximum strength during “Mortaring exercise” or unexpected impact.
Note: There are two sizes of M4 Carbine Receiver Extensions (buffer tubes): Mil-Spec and Commercial.