Is the AR-15 telescoping stock strong enough for use with shotguns?
Absolutely. After five years of sales we are not aware of a single failure in the receiver extension tube, nylon buttstock or grip (the AR-15 components of the stock) due to the more severe shotgun recoil. However, as the AR-15 buttstocks were never designed for comfortable use with shotguns, we always recommend the fitting of a rubber buttpad to temper the hard plastic and sharp edges of the buttstock.