Im pretty sure its around the 550-600mm mark. I have the Madbull PSG1+(650mm) length barrel, its to long.
ASGI has this barrel, that since I destroyed my madbull one, im thinking about getting, its around the right length and it looks to have the notch for vsr-10 buckings, what do you guys think?: http://www.airsoftgi.com/product_info.php?products_id=6046
I have had an ASGI 6.03 in my jg bar-10 for a long time and for the price, its damn good. Im just wondering if you guys think it has the cut for the bucking, in the pic at the top(zoom in) you can see what looks to be a notch for the bucking, and the review is from a kjw m700 owner. I think thats my next purchase.