The Apex Low Profile Safety Lever for the CZ Scorpion EVO 3 S1 fits both the pistol and carbine, and is compatible with the CZ folding stock. The Safety Lever is made from 6061 aluminum, hardcoat anodized black, with a machined indicator line. Requires 1.5mm Allen wrench to install. Expected Results - Direct drop-in replacement of factory safety lever (left side)- Machined indicator line on each lever - Fits the CZ Scorpion EVO 3 S1 pistol and carbine- Maintains factory safety valuesApplicable To What Gun(s) Works with all CZ Scorpion EVO 3 S1 pistols and carbines.In The Package 1 ea. Left Low Profile Safety Lever for the CZ ScorpionInstallation Resources Install using a 1.5mm Allen wrench (not included)