Doublekross double cross - TANDEMKROSS Assembled DoubleKross Ruger 10/22 20 Rounds Rifle Magazine

The Doublekross magazines I received from Optics Planet could not be fully loaded, the springs were wound too tight. Any attempt to fully load the magazine caused the shell case to be crushed by my thumb. I disassembled the magazines and released the spring tension, then reassembled with less tension on the spring. They now work perfectly. If you are comfortable with the assembly of the 10/22 magazine, the Doublekross works well. If you don't want to mess with it, stay with factory magazines.