Good evening gentlemen, just a quick question or two about installing a new muzzle device.

I recently purchased a VG6 Gamma muzzlde brake, and I'd like to replace my A2 birdcage with it. Do I need some type of device to brace the upper receiver in/on? I don't want to potentially screw up the receiver or the barrel but just holding it between my legs and torquing the new device on. The youtube videos and forum posts I've seen so far seem kind of all over the place.