WOA UBR Extension Tube Weight
If you are looking to add more weight to your Magpul UBR Gen 1 Buttstock, the WOA Extension Weight is an easy, unobtrusive solution. Weights are made from solid steel and have a durable finish. When installed, the weight replaces the cap on the end of the UBR extension tube.
WOA eliminated the removal lug from the extension, the preset button is used to both adjust and remove the stock.
Note: This item is designed for use with Gen 1 UBR stock only.
Two weights are available - The Short weight adds 10.2 ounces and is limited to the #3 position, approximately a 12.5" length of pull. The Long weight adds 13.3 ounces and is limited to the #4 position, approximately a 13" length of pull.