Quick Tip: Correct Scope Height - AR-15 vs Conventional Rifles

Published on May 12, 2021
Duration: 2:20

Mounting a scope on an AR-15 requires a different approach than conventional rifles due to its straight-line stock design. Unlike bolt-actions with stock drop, AR-15s need higher scope mounts, often using cantilever designs, to achieve a proper cheek weld and eye alignment. Attempting to mount scopes too low, as is common practice for other rifle types, leads to poor ergonomics and difficulty acquiring a sight picture on an AR platform.

Quick Summary

AR-15s require higher scope mounts than conventional rifles due to their straight-line stock design. Mounting scopes too low prevents a proper cheek weld and correct eye alignment. Use AR-specific cantilever mounts designed to achieve the optimal height for comfortable and effective shooting.

Chapters

  1. 00:00Common Mounting Mistakes on AR-15s
  2. 00:37AR-15 Ergonomics vs. Conventional Rifles
  3. 01:06Stock Drop Comparison: AR vs. Bolt-Action
  4. 01:51Recommended AR Cantilever Mounts

Frequently Asked Questions

Why do AR-15s need higher scope mounts than conventional rifles?

AR-15s have a straight-line stock design where the top rail is nearly level with the stock. This contrasts with conventional rifles that often have a dropped stock, necessitating higher mounts on AR-15s for proper cheek weld and eye alignment.

What is the common mistake when mounting scopes on an AR-15?

The most common mistake is mounting the scope too low, trying to replicate the low-ring approach used on conventional rifles. This prevents the shooter from achieving a comfortable cheek weld and aligning their eye correctly with the optic.

What type of scope mount is recommended for an AR-15?

AR-15 specific cantilever scope mounts are highly recommended. These mounts are designed with the correct height and forward offset to ensure proper eye level alignment and maintain a comfortable shooting position.

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