Shooting the Singapore Technologies SAR-21

Published on January 7, 2013
Duration: 6:20

This guide details the disassembly of the Singapore Technologies SAR-21, focusing on accessing its gas system. The video, presented by Ian McCollum with high technical authority, demonstrates a unique two-lug rotating bolt and a long dwell time contributing to a controllable rate of fire. It highlights the rifle's bullpup configuration and integrated features, offering insights into its mechanical design and range performance.

Quick Summary

The Singapore Technologies SAR-21 is a bullpup rifle featuring a unique two-lug rotating bolt and long dwell time, resulting in a controllable rate of fire (500-550 RPM) and light recoil. Its gas system has an adjustable regulator for easy maintenance, and the trigger group is based on a modified AR-15 design, while the stock uses a metal cage for strength.

Chapters

  1. 00:14Introduction to SAR-21
  2. 00:50External Controls & Features
  3. 01:12Disassembly & Internal Construction
  4. 02:05Gas System & Charging Handle
  5. 03:11Bolt Carrier & Rate of Fire
  6. 03:51Range Performance & Recoil

Frequently Asked Questions

What makes the Singapore Technologies SAR-21's gas system unique?

The SAR-21 features an adjustable gas regulator with a tapered plug, designed for straightforward cleaning and maintenance. This system, combined with its long dwell time, contributes to a controllable rate of fire and light recoil impulse.

How does the SAR-21's internal design compare to other rifles?

While its trigger group is based on a modified AR-15 design, the SAR-21 distinguishes itself with a unique two-lug rotating bolt and a long dwell time. Its stock utilizes a sheet metal cage for enhanced strength, unlike the all-polymer construction of the Steyr AUG.

What is the typical rate of fire for the SAR-21?

The SAR-21 has a controllable rate of fire, typically ranging from 500 to 550 rounds per minute. This is achieved through its bolt carrier's long rotational helix cut, which provides significant dwell time.

What are the key external features of the SAR-21?

The SAR-21 includes an ambidextrous charging handle, a fixed right-side ejection port, a fire selector for semi and full-auto modes, and a cross-bolt safety. It also comes standard with an integrated 1.5x optic and a built-in laser aiming device.

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