The 30mm scope adaptor is mounted to your optic's tube and is ready to accept accessories.

Features and Specifications:
Manufacturer Number: MT048
Black anodized aircraft grade aluminum
Accepts all standard Weaver / Picatinny 1913 accessories
Length: 1.75 / 2.25"
Weight: 1.2 oz.

Includes:
Two Adjustable accessory rails 1.75" / 2.25"