||These bearings are great. I installed them into my high speed echo 1 g36 which i had origionally tried to install matrix solid bushings, which didnt fit level with the GB. So, I bought these and I am very pleased. They not only fit perfectly in the GB, but with perfect shimjob i get 23 revolutions out of one spin with all 3 gears installed. Before i was only getting 5 with bearing bushings.
-Fit level with GB
-Slightly over 8mm to compensate for wear
-Great preformance and build quality
-increase ROF and makes GB sound smoother
-Withstand 33rps and 360fps setup
All in all this is a great product especially for the price.
Rating: [5 of 5 Stars!]