Please note that NO RELEASE AID in included in this listing.

CONTOUR thumb pegs are anatomically designed to cradle your thumb in 2 directions while the 3 sided design fits inside the bend of your thumb for easy repeatability. 

These knobs for Carter, Ultraview,  and Truball thumb releases and may fit others with a #5 (3mm) or larger hole.

One knob is included with each order, and multiples may be ordered by adding them to your cart. 

One Stainless 3mm screw is included with each peg which threads into a brass insert. 

The large size pegs features two mounting holes to choose from. 


There are 3 Sizes to choose from
Large- 3/4" diameter
Medium- 1/2" diameter
Small- 3/8" Diameter


3D printed in the USA from PETG Thermoplastic.
If you aren't satisfied, send them back for a full refund.  

Thanks for looking, and please message with any questions.