$209.99This durable black polymer buttstock is is designed for use with the aftermarket M-11/9 upper receivers with higher sights or optics. This left folding buttstock features a sling mount on the top rear of the buttstock. When folded, it will not interfere with operation of the subgun. Easily un-folds and solidly locks in place. Installs with one screw and a threaded block that drops inside the lower receiver.