Geissele Ultra Duty AR-15 Magazine Release Button

Geissele's Ultra Duty magazine release button for the AR-15, checkered on the face and finished in black.

The texture matches the Geissele Maritime bolt catch, so a lower running both parts reads as one set of controls rather than a parts bin build. Checkering on a mag release earns its keep the first time a thumb has to find the button with gloves on or with wet hands, which is when a smooth button starts to slip.