Features:

Durable metal construction.

Lightweight, made of aluminum with black anodized matte finish.

Easy installation (tool included).

With 25.4mm(1") or 30mm diameter, compatible with most scopes or barrels.

30mm to 25mm(1") ring adapters included.

40mm long standard rail for attaching a wide variety of accessories.

Mounts onto 20mm rail.

Specifications:

Color: Black

Material: Aluminum alloy

Diameter: 25.4mm, 30mm

Weight: 31g / 1.1oz

Includes:

1 x 30mm Ring Scope adapter base

1 x 1" Insert

1 x Hex wrench