Sig 556 review- As heavy yet reliable as a fat chick

Published on March 20, 2015
Duration: 17:37

This review of the Sig 556 highlights its robust, piston-driven operating system, drawing parallels to AK-47 reliability while incorporating AR-15 style controls. The instructor, with extensive trigger time, notes its significant weight and nose-heavy balance, which contribute to a flat shooting profile during rapid fire. While praised for exceptional reliability across various ammunition types and accuracy comparable to high-end AR platforms, potential drawbacks include complexity in field stripping, non-ambidextrous controls, and an ergonomic challenge with optic mounting.

Quick Summary

The Sig 556 is a piston-driven rifle designed by Sig Sauer to merge the AK-47's reliability with AR-15 style controls. It weighs approximately 9 lbs stripped and is nose-heavy, contributing to a flat shooting profile during rapid fire. Accuracy is comparable to high-end AR-15s, and it excels in reliability, cycling a wide range of ammunition. Potential ergonomic considerations include its weight and the non-ambidextrous magazine release.

Chapters

  1. 01:26Introduction to Sig 556
  2. 02:18Weight and Balance
  3. 03:21Maintenance and Complexity
  4. 06:07Controls and Ergonomics
  5. 08:19Trigger Assessment
  6. 09:41Accuracy and Recoil
  7. 11:17Reliability and Extraction
  8. 12:17Sights and Optics

Frequently Asked Questions

What is the Sig 556's operating system and how does it compare to other rifles?

The Sig 556 features a piston-driven operating system, designed by Sig Sauer to combine the renowned reliability of the AK-47's system with the familiar controls and ergonomics of the AR-15 platform. This piston system is known for its durability and ability to function reliably under harsh conditions.

How does the Sig 556 handle recoil and what is its accuracy like?

Despite its weight and nose-heavy balance, the Sig 556 shoots remarkably flat during rapid fire, making it effective for follow-up shots. Its accuracy is considered comparable to high-end AR-15 rifles from manufacturers like Daniel Defense and Bravo Company, offering precise performance.

What are the potential ergonomic drawbacks of the Sig 556?

The Sig 556 is heavier than many standard carbine-length AR or AK rifles, weighing around 9 lbs stripped. Its nose-heavy configuration can make handling more tiring. Additionally, the placement of the folding stock hinge may interfere with the safety selector for left-handed shooters.

What are the key reliability features of the Sig 556?

The Sig 556's strongest suit is its reliability, attributed to its piston-driven operating system. It is capable of cycling a wide spectrum of ammunition, from inexpensive steel-cased rounds to premium match-grade loads, demonstrating robust performance across various conditions.

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