The Knight’s Armament Rubberized Thumb Rest gives your support thumb a consistent place to sit on a MIL-STD-1913 top rail (Knight’s Armament part no. 30537). It features an elevated stop and a textured grip to accommodate an isosceles shooting stance. The rubberized surface gives the thumb a secure, repeatable contact point. It is installed on the top rail itself. For shooters who want a repeatable hold, this is a small part with a practical job.

Key Specifications

• The surface is rubberized and textured, so the thumb has a secure place to rest.
• An elevated stop helps you land in the same hand position from shot to shot.
• It is designed for an isosceles shooting stance, as Knight’s Armament describes it.
• It installs on a MIL-STD-1913 top rail.

Frequently Asked Questions

What does the thumb rest do? It provides a consistent thumb placement point on the top rail, with a rubberized surface and an elevated stop.

What rail does it use? It is designed to be installed on a MIL-STD-1913 top rail.

Buy the Knight’s Armament Rubberized Thumb Rest

A repeatable hand position is one of the cheapest accuracy gains, and a defined thumb stop makes it easier to repeat. Order this rest from our Lubbock, Texas gun shop for fast shipping, and browse more AR-15 accessories and parts while you are here.