Amazon.com: Nrowe Factory Replacement Elevation Cap for ROMEO4 and ROMEO5 red dot Sights, ROMEO4/ROMEO5 Windage Turret Cap, Black (Pack of 2) : Automotive
Bushnell Trophy Scope Windage & Elevation Turret Caps 23 x 13 x 11 mm | eBay
Capped turrets - Optics-Trade
28mm 28-410 Black Turret Cap, 3.2mm Orifice
Mueller Turret Caps (click on photo) - Mueller Rifle Scopes