- "Threaded steel barrel attachment; slows the escape of propellent gasses, resulting in muffled weapon fire."
- ―W-Y BL11 Firearm Muffler description (from Aliens: Colonial Marines - Arsenal Upgrades - NSG 23 Assault Rifle - W-Y BL11 Firearm Muffler)
The BL11 Firearm Muffler
is a firearm suppressor manufactured by the Weyland-Yutani Corporation
for the NSG 23 Assault Rifle