ArmaLite XM110 Rifle to AR10 Super SASS

Published on April 9, 2023
Duration: 18:07

This video provides an in-depth look at the ArmaLite XM110 rifle, a precursor to the Super SASS, developed for the US military's Semi-Automatic Sniper System program. It details the rifle's technical specifications, historical context, and design evolution, contrasting it with competitors like the Knight's Armament SR-25. The presenter, with apparent expertise in firearms, highlights the advantages of semi-automatic sniper systems for rapid target engagement and discusses unique features like the modified M14 magazines and adjustable gas system.

Quick Summary

The ArmaLite XM110 program sought a semi-automatic sniper rifle to offer faster target engagement than bolt-action rifles. Key features included an AR-10 type receiver, an adjustable gas system for M118/M118LR ammo, and unique modified M14 magazines. The later Super SASS evolved with options like the Magpul PRS stock and sometimes a forward assist.

Chapters

  1. 00:00Introduction to the Rare XM110
  2. 00:17The XM110 Program and Semi-Auto Sniper Systems
  3. 00:47Semi-Auto vs. Bolt-Action: Speed Advantage
  4. 00:75XM110 Program Participants and KAC SR-25 Win
  5. 00:98ArmaLite's Entry and Mark Westrom's Vision
  6. 01:21XM110 Technical Breakdown: Stock to Receiver
  7. 01:48Receiver Type and Forward Assist Absence
  8. 01:81Handguard and Free-Floated Barrel
  9. 02:08Match Grade Barrel and Adjustable Gas System
  10. 02:23Ammunition Considerations: M118 and M118LR
  11. 02:40Suppressed Fire and Silent Operation
  12. 02:42Optics: Leupold Mark 4
  13. 02:57Charging Handle: PRI Gas Buster
  14. 03:18Left Side Features: Safety and Bolt Catch
  15. 03:30Military Markings and Flat Dark Earth Finish
  16. 03:44Unique Magazine: Modified M14
  17. 04:07Magazine Superiority Debate: M14 vs. SR-25
  18. 04:36Westrom-Era Magazines and Reliability
  19. 04:58Historical Significance and Firing Test
  20. 05:18Range Test: Firing the XM110
  21. 05:57Transition to the Super SASS
  22. 06:05Super SASS Evolution: Stocks and Features
  23. 06:34Super SASS Upper Receiver: Forward Assist Addition
  24. 06:54Super SASS: Black Finish and Two-Stage Trigger
  25. 07:03Super SASS Magazines: Armalite Produced
  26. 07:23Forward Assist Functionality and Bolt Carrier
  27. 07:41Forward Assist: Visual vs. Functional
  28. 07:51Handguard and Gas Block Modifications
  29. 08:03Super SASS Barrel Specs and Accuracy Guarantee
  30. 08:30Weight, Optics, and Suppressor
  31. 08:52Range Test: Super SASS Shooting Performance
  32. 10:03Final Range Results and Legacy Discussion
  33. 10:13Westrom-Era vs. SAC Guns
  34. 10:51Availability of Westrom-Era and Super SASS
  35. 10:69Conclusion: A Piece of History

Frequently Asked Questions

What was the purpose of the XM110 program?

The XM110 program was initiated by the US military to develop a rapid engagement semi-automatic sniper rifle. The goal was to provide a more effective alternative to bolt-action rifles, allowing for faster engagement of multiple targets without sacrificing precision accuracy at practical ranges.

What are the key differences between the ArmaLite XM110 and the Knight's Armament SR-25?

While both were contenders for the XM110 program, the ArmaLite XM110 featured an AR-10 type receiver angle and initially lacked a forward assist, reflecting early AR-10 designs. The SR-25, developed by KAC, had its own distinct features. A significant difference in ArmaLite's design was the use of modified M14 magazines.

What made the ArmaLite Super SASS's magazine system unique?

Mark Westrom's AR-10 designs, including the XM110 and Super SASS, uniquely utilized modified M14 magazines. This choice was driven by magazine availability during the assault weapon ban and Westrom's belief in the superior robustness of the steel M14 magazine compared to SR-25 magazines.

What are the technical specifications of the ArmaLite Super SASS barrel?

The ArmaLite Super SASS is equipped with a 20-inch barrel made from 416R stainless steel. It features a 1:10 twist rate and is guaranteed to achieve sub-MOA accuracy with match-grade ammunition, with documented performance of 0.44-inch groups at 100 yards.

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