Short Reach Mag Release for Caliburn Rival
Moves the release lever forward, closer to the magazine and makes it smaller.
So that it is easier to press with your off-hand thumb while simultaneously grabbing the magazine itself. (AK style)
If you had huge hands, you might have been able to do that already, but this helps people with small hands.
also redesigns the spring attachment to break less easily (no more layer shear)
print with supports -needed for the magazine catch and spring hook