The Firing Line Forums - View Single Post - Can a 5.45x39 upper receiver fit a 5.56 lower receiver?

357 Python · December 23, 2011, 08:03 PM

Considering that a .50 Beowolf upper will fit the 5.56 lower, My guess would would be yes. This is a guess only so don't hold me to it.

December 23, 2011, 08:03 PM	#2
357 Python Senior Member Join Date: June 7, 2007 Location: Charlottesville, VA Posts: 941	Considering that a .50 Beowolf upper will fit the 5.56 lower, My guess would would be yes. This is a guess only so don't hold me to it.