Brownells - AR-15/M16 One O'clock Offset Rail

Published on October 6, 2011
Duration: 1:47

This guide details the installation of the Daniel Defense 1:00 Offset Rail on AR-15 and M16 platforms. The rail allows for the convenient mounting of auxiliary optics, lights, and accessories at the 1:00 or 11:00 positions, enabling rapid transitions between primary and secondary aiming devices. It can also be mounted on the underside for lasers or lights, positioned near a vertical grip for ergonomic control. The system features a sidebar and crossbolt locking mechanism for secure zero retention.

Quick Summary

The Daniel Defense 1:00 Offset Rail for AR-15/M16 platforms allows mounting of auxiliary optics, lights, and accessories at the 1:00 or 11:00 positions. This facilitates rapid transitions between primary and CQB sights without breaking cheek weld. It also supports lasers or lights on the underside for ergonomic control and features a secure locking system for backup iron sights.

Chapters

  1. 00:00Introduction to the 1:00 Offset Rail
  2. 00:03Mounting Auxiliary Optics and Accessories
  3. 00:12Installation on Handguard Side Rail
  4. 00:22Instant Transition to CQB Sight
  5. 00:33Underside Mounting for Lasers/Lights
  6. 00:46Ergonomic Control with Support Hand
  7. 00:51Use with Backup Iron Sights (BUIS)
  8. 00:54Secure Zero Movement Attachment
  9. 01:11Viewing Tunnel for Situational Awareness
  10. 01:16Materials and Construction (Made in USA)
  11. 01:26Brownells Guarantee

Frequently Asked Questions

What is the primary benefit of using a 1:00 offset rail on an AR-15 or M16?

A 1:00 offset rail allows for the convenient mounting of auxiliary optics, lights, or lasers at the 1:00 or 11:00 positions. This enables rapid transitions between a primary long-range optic and a non-magnified CQB sight without compromising cheek weld.

How does the Daniel Defense 1:00 Offset Rail ensure zero retention for backup sights?

The rail features a sidebar and crossbolt locking system designed for secure zero movement attachment. This mechanism allows for the removal and reinstallation of backup iron sights without losing their established zero.

What materials and construction are used for the Daniel Defense 1:00 Offset Rail?

The rail is precision machined from aluminum billet and features a Milspec type 3 hard coat for enhanced strength and durability. It is manufactured in the USA.

Can the 1:00 offset rail be used for mounting accessories other than optics?

Yes, the 1:00 offset rail can also be used to mount accessories like lasers or weapon lights. Mounting it on the underside of the handguard positions these devices close to a vertical forearm grip for easy control operation.

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