The Wilson Combat AR9 has been specifically designed for superior reliability and maximum accuracy, while retaining the familiar handling and controls of the AR platform. Wilson Combat engineers have designed two unique AR9 lower receivers with last-round bolt hold open that are compatible with the most popular 9mm service pistol magazines from Glock. These new billet-machined aluminum receiver models also accept standard AR accessories like furniture, triggers, charging handles, buttstocks and optics, and incorporate an integral trigger guard and flared magwell for fast reloading. The Wilson Combat AR9 closed-bolt blowback operating system is soft shooting and reliable with a wide variety of 9mm loads and exhibits flawless feeding with all common pistol bullet shapes, including hollowpoint and +P tactical ammunition. The AR9 is also an optimized suppressor host with minimal gas blowback and enhanced accuracy over other designs. Wilson Combat carbon steel match-grade button-rifled 1-10 twist 9mm barrels ensure that the AR9 meets our stringent quality and accuracy requirements.