The new DAA Adjustable Thumb-Rest allows you to do what no other will – to adjust both the angle and the position of your thumb-rest with just a turn of a screw!
The benefits of mounting a thumb-rest on the pistol are well established, and many top shooters choose to use one on their competition guns. These are legal for both Open and Limited/Standard divisions, as long as the box restrictions are met.
Left Hand is for a Left Handed Shooter(right side), Right Hand is for a Right Handed shooter(left side)
(5)
Average rating 9 out of 10
( based on 5
reviews )

Mr
Has 3 holes, only 2 screws in package, should have 3 . The only left hand thumb rest I know of.
Response from chuck- The three holes are not meant to be all used, only two. The three holes are to allow for more adjustability as to where you locate it.
Competion
Good Large Pedal
This one sits on my Tanfoglio Limited which had pre-drilled holes for mounting. Blue Loctite is a must for both mounting holes and the adjustment screw. Once set up, provides a solid, large and wide platform for support thumb.
Double Alpha Adjustable Thumb Rest
Excellent product would recommend to anyone.
Thumb rest
Works well