VFC Avalon URGI CQB AEG (Two Tone) Springs & Spring Guides 4v (2 to 3 cell

4v (2 to 3 cell lithium polymer battery)

Be sure to review the "Important Fitment Guide" section of this description to ensure that the installation goes as smoothly as possible

Safety Data: DOT-E 11917

Parallax-free with unlimited eye relief

VFC Avalon URGI CQB AEG (Two Tone) Springs & Spring Guides 4v (2 to 3 cellThe SOPMOD Block 3 or more popularly known URG I (Upper Receiver Group Improved) is a rifle pattern currently being used by several units of the United States Special Operations community. The URG I is designed to be an upgrade over the venerable MK18 and SOPMOD Block 2 versions of the M4 and boasts improvements over its predecessors. Upgrades such as a slimline M LOK rail system, improved bolt carrier group, and charging handle are some of the easy