Flip-up Red Dot Lens Protection Caps for Sig Sauer Romeo5, 28mm Diameter

• Red dot lens caps equiped with spring-loaded mechanism, 2-pack as a set in box, compatible with Sig Sauer Romeo 5 (Not fit Romeo5 Gen II), Holosun HS403B and 1x20mm 28mm diameter lips red dot sights. (Make sure your red dot lips is 28mm diameter before purchasing)
• Made of premium PP materials, matt black, toolless installation, red dot caps can snap securely to the outer lips, convenient and durable to use.
• Flip up red dot lens cover is lightweight, Spring-loaded flip-up mechanism pops open effortlessly when needed and secures tightly when not in use.
• INSTALLATION GUIDE: Align cover with red dot eyepiece or objective lips, then "hard press" cover to force it fit in red dot, rotate the whole caps to adjust alignment. (Refer to the installation video in page)
• Sight cover protects your optics from dirt, dust and debris. Promise to repair or replace if items are damaged or defective.