So I went with the Aero lower unit kit. Wasn’t to difficult. Everything seemed to fit except for the grip it’s tight to the receiver except in the area of the tail. The next thing I’m going to buy is the stock, tube and buffer spring. When I watch build videos a lot of the malfunctions during the range test are because of the “buffer spring.” Is there anyway to avoid this? Any recommendations, please link. Looking for an adjustable.
Thanks!