The current G3 barrel is 102mm and Canadian law states anything 105mm or less is prohibited: I believe 108mm is standard to comply without being so close to cause 'issues'. So you might see about 5-8mm or 1/4 - 3/8" past the slide.
The current G2 barrel is 81mm. That would mean about a 27mm extension, or about one inch past the slide.
I could be wrong, just guessing.
That sure makes them butt ugly, IMHO! A deal breaker, at least for me.





















































