SIG Spear LT... Is it Reliable?

Published on November 22, 2024
Duration: 16:58

This video provides a reliability test and overview of the Sig Sauer Spear LT, specifically a 16-inch conversion kit adapted to an AR-15 lower. The reviewer tests the firearm's performance with 500 rounds of PMC Xtac 5.56 ammunition, focusing on the adjustable gas block's functionality with and without a suppressor. Key observations include the gas block's two settings ('+' and '-') and its impact on ejection patterns, as well as a note about the bolt not locking back when the stock is folded.

Quick Summary

The Sig Sauer Spear LT is considered reliable based on a 500-round test, with no malfunctions observed. Its two-position adjustable gas block ('+' for over-gassing with varied ammo, '-' for optimal ejection) and gas piston system contribute to its dependability. A key operational note is that the bolt will not lock back when the stock is folded due to interference with the AR-15 lower's bolt release.

Chapters

  1. 00:12Intro: Is the Sig Spear LT Reliable?
  2. 00:30Spear LT Conversion Kit Overview
  3. 01:05Ammunition and Magazines Used
  4. 01:26Full Disclosure & Purchase Details
  5. 01:48First Mags & Zeroing
  6. 02:40First 100 Rounds & Adjustable Gas Block
  7. 03:28Gas Block: Unsuppressed '+' Setting
  8. 03:45Gas Block: Unsuppressed '-' Setting
  9. 04:02Gas Block: Suppressed '+' Setting
  10. 04:32Gas Block: Suppressed '-' Setting
  11. 05:05Gas Block Tuning Recommendations
  12. 05:22Build Drills & Close Range Testing
  13. 06:05Spear LT vs. PSA Jackal Comparison
  14. 07:3725-Yard Grouping Test
  15. 08:41Spear LT Conversion Kit Features
  16. 10:11Shooting with Stock Folded
  17. 10:53Full Build Rundown
  18. 15:25Conclusion: Is the Sig Spear LT Reliable?
  19. 15:59Key Takeaways & Malfunction Note

Frequently Asked Questions

How reliable is the Sig Sauer Spear LT based on a 500-round test?

The Sig Sauer Spear LT demonstrated high reliability during a 500-round test, with no malfunctions reported. The reviewer concluded that the firearm is reliable, noting its intentionally over-gassed system contributes to this dependability, especially with varied ammunition types.

What are the key features of the Sig Spear LT conversion kit?

The Sig Spear LT conversion kit adapts an AR-15 lower to the Spear LT upper, featuring a dual-rod recoil assembly that eliminates the buffer system. It includes the upper, an adapter piece, a Sig Spear buttstock, and often an optic like the Romeo 4XT Pro.

How does the adjustable gas block on the Sig Spear LT work?

The Sig Spear LT has a two-position adjustable gas block with '+' and '-' settings. The '-' setting is recommended for optimal ejection and smoother shooting, while the '+' setting increases gas to ensure reliability with a wider range of ammunition, including potentially underpowered loads.

What is the main drawback of shooting the Sig Spear LT with the stock folded?

A significant drawback of shooting the Sig Spear LT with its stock folded is that it can obstruct the bolt release on an AR-15 lower. This interference prevents the bolt from locking back on the last round, which is a notable operational limitation.

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