The Q adapter provides a reliable method to mount your Erect9r suppressor securely. Crafted from stainless steel, it offers excellent wear resistance and durability. The adapter mounts securely to the barrel using the unique tri-Lug mounting system commonly found on popular SP5/MP5 barrels. These features combine to make the adapter a high-quality addition, allowing you to easily attach your Erect9r suppressor to your favorite pistol or pistol caliber carbine.