Armory Craft Icarus Precision Grip Tungsten Weight Kit - 3 RODS
 
Introducing our tungsten weight kits for use with various Icarus Precision P320 aluminum grip modules.
 
These kits come in 2 different variations.  You will need to select the appropriate kit for your grip module based on the channels that are present in your particular grip module. Refer to the pics above do determine which kit you need. 
 
Kits are available in the following orientations:
3 rod kit (TWO small, ONE large) Weight = 1.3oz / 36 grams
5 rod kit (THREE large, TWO small) Weight = 2.9oz / 82 grams - available HERE
 
Both kits ship with a tube of silicone for application into the top of the rod channels to secure them into place.  Only a small amount of silicone needs to be applied into the TOP of each channel AFTER seating the rods within the channels.