yes it does have a manual thumb safety Specifications and Features: Ruger LC9s with LaserMax GripSense 3279 Semi Automatic Handgun 9mm Luger Striker Fired 3.12" Barrel 7 Rounds Trigger Safety, Manual Safety, Magazine Disconnect High Visibility 3 Dot Sight System Fixed Front Sight with Windage Adjustable Rear Sight Black Glass-Filled Nylon Polymer Frame Blued Barrel and Slide Length 6" Height 4.5" Width 0.90" Weight 18.6 Ounces

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Hi Mikes, Yes, this pistol comes with a "left Side" Manual Thumb Safety as pictured : google.com/search?q=ruger+lc9s+manual+safety&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiI56L_jsTaAhWqmuAKHdJ_B9sQ_AUICygC&biw=1920&bih=938#imgrc=XuOi04cJiwXxPM: Here's the Specs - Ruger LC9s with LaserMax GripSense 3279 Semi Automatic Handgun 9mm Luger-- Striker Fired-- 3.12" Barrel --7 Rounds --Trigger Safety-- Manual Safety-- Magazine Disconnect --High Visibility 3 Dot Sight System Fixed Front Sight with Windage Adjustable Rear Sight-- Black Glass-Filled Nylon Polymer Frame-- Blued --Barrel and Slide Length 6"-- Height 4.5" --Width 0.90" --Weight 18.6 Ounces

Yes Mike, this pistol comes with a "left Side" Manual Thumb Safety as pictured : google.com/search?q=ruger+lc9s+manual+safety&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiI56L_jsTaAhWqmuAKHdJ_B9sQ_AUICygC&biw=1920&bih=938#imgrc=XuOi04cJiwXxPM:

yes it does have a manual thumb safety Specifications and Features:
Ruger LC9s with LaserMax GripSense 3279
Semi Automatic Handgun
9mm Luger
Striker Fired
3.12" Barrel
7 Rounds
Trigger Safety, Manual Safety, Magazine Disconnect
High Visibility 3 Dot Sight System
Fixed Front Sight with Windage Adjustable Rear Sight
Black Glass-Filled Nylon Polymer Frame
Blued Barrel and Slide
Length 6"
Height 4.5"
Width 0.90"
Weight 18.6 Ounces