I have no experience personally with any WE GBBRS, I have plenty of teammates that have ran WE G36s,M4s & even the Scar,but I have heard that the WE scar is one of there worst rifles off the shelf. From what I have seen and been told they are a hit or miss but require a ton of Mods and work to get going. They are game able if you have patience and have decent teching skills. That being said,some of them have switched over to GHK and In my 3 years of strictly running a GHK AK74U & RPK I have nothing but positives for GHK including quality LCT bodys for the AK variant,clean bolt system,works well in cold weather,amazing cool down for the RPK on full auto and in my eyes are clearly the King of GBBR

. I know your post stated you were interested in the scar,GHK does not have the Scar but I strongly recommend GHK.