Description
30mm Heavy-Duty Low-Profile 3 Bolt Ring Bracket Mount Set (21mm Rail)
The FOCUS MD3013 is a rugged, low-profile 30mm ring mount built for secure accessory mounting on 21mm rails. Precision machined from aircraft-grade aluminum alloy with a black matte finish, it features a 3-bolt heavy-duty clamp and an anti-rotation design to help keep your setup stable and repeatable after removal and reinstallation. Ideal as a base mount for 30mm tube accessories such as scopes or flashlights.
Key Features
- 30mm Ring Clamp: Fits standard 30mm tube accessories
- Heavy-Duty 3-Bolt Design: Strong clamping force for a more secure hold
- Fits 21mm Rails: Adjustable to fit standard 21mm rail platforms (as listed)
- Aircraft-Grade Aluminum Construction: Strong, lightweight, corrosion resistant
- Black Matte Finish: Low-glare finish suited to outdoor/tactical use
- Anti-Rotation Feature: Helps prevent shifting and improves repeatability
- Low-Profile “Crocodile” Cut Design: Lightweight machining for a compact footprint
- Repeatable Mounting: Designed for positive, consistent re-fit capability (as stated)
Technical Specifications
- Brand / Model: FOCUS MD3013
- Type: Low-profile ring mount / bracket mount
- Ring Diameter: 30mm
- Material: Aluminum alloy
- Colour: Black
- Rail Fitment: 21mm (as listed)
- Feature: Low profile, heavy duty, 3 bolts
Perfect For
- Mounting 30mm Accessories: Secure clamp for lights or optics with 30mm tubes
- Outdoor & Field Use: Durable aluminum with anti-rotation stability
- Compact Builds: Low-profile mount that keeps bulk down
- Users Wanting a Strong Clamp: 3-bolt design for added hold strength



