my pistol is built on an anderson "closed" lower with the intergrated trigger guard.
it made for a nice easy build, since you dont have to mess with the trigger guard or need any tools to install one without risking the 'ears' that hold the finger guard roll pins.
plus its less roll pins to screw with 
its open enough that i can handle it with my hunting gloves on and still get inside the trigger guard comfortably.
