KAC-Knight's Armament Panel Kit, URX 3 & 3.1 (30408)
URX3.1/URXIII Panel Kit Consisting of:
1 - 4" Handstop
1 - 4" Slim Panel
2 - 4" Panel
Hole spacing is 3.175" center to center. Actual length of panels is 3.965".
Note On Colors: Tan and Taupe are Knight's Armament colors, Flat Dark Earth is a match to Magpul FDE