The Sig MCX Spear vs MCX Spear LT

Published on June 13, 2023
Duration: 13:14

This review compares the Sig Sauer MCX Spear and MCX Spear LT, highlighting their differences in caliber, weight, and features. The Spear, chambered in .308/7.62x51mm, is heavier at 8.6 lbs, while the Spear LT in 7.62x39mm weighs 7.6 lbs. Both utilize a bufferless gas piston system and offer modularity, with the LT supporting barrel and bolt swaps for various calibers.

Quick Summary

The Sig MCX Spear weighs 8.6 lbs and is chambered in .308/7.62x51mm, while the lighter MCX Spear LT (7.6 lbs) uses 7.62x39mm. Both feature a bufferless gas piston system, and the LT offers modularity for caliber changes.

Chapters

  1. 00:44Intro: Sig MCX Spear & Spear LT
  2. 01:08NGSW Program History
  3. 02:50Weight Comparison
  4. 03:06Technical Features: Gas Piston, Folding Stock
  5. 05:08Caliber Visual Comparison
  6. 05:41MCX Spear Range Performance
  7. 07:17MCX Spear LT Range Performance
  8. 09:22Platform Modularity & Caliber Swaps

Frequently Asked Questions

What is the main difference between the Sig MCX Spear and MCX Spear LT?

The primary difference lies in their caliber and weight. The MCX Spear is chambered in .308/7.62x51mm and weighs 8.6 lbs, while the MCX Spear LT is in 7.62x39mm and weighs 7.6 lbs.

What operating system do the Sig MCX Spear rifles use?

Both the Sig MCX Spear and Spear LT utilize a bufferless, short-stroke gas piston system. This design contributes to their reliability and allows for features like folding stocks.

Can the Sig MCX Spear LT change calibers?

Yes, the MCX Spear LT is highly modular and allows users to swap barrels and bolt heads to change calibers between 7.62x39mm, 5.56x45mm, and .300 Blackout.

What is the significance of the NGSW program regarding the Sig MCX Spear?

The Sig MCX Spear is the civilian version of the XM7 rifle, which won the Army's Next Generation Squad Weapon (NGSW) contract to replace the M249 and M240 machine guns.

Related News

All News →

More Reviews Videos You Might Like

More from ClassicFirearms

View all →