The Sterling assault rifle story's final chapter with firearms & weapon expert Jonathan Ferguson

Published on July 13, 2022
Duration: 21:51

This video provides an in-depth look at the Sterling SAR-87 assault rifle, a late-stage prototype from Sterling Armaments. Expert Jonathan Ferguson details its design lineage, technical specifications, and disassembly process. The SAR-87 is presented as a derivative of the AR-18, featuring a long-stroke gas piston system, an ambidextrous safety selector, and a detachable trigger group, though it ultimately never saw production due to the company's closure.

Quick Summary

The Sterling SAR-87 is a rare prototype assault rifle from the late 1980s, developed by Sterling Armaments as a potential infantry rifle. It features a long-stroke gas piston system, an ambidextrous safety selector, and a detachable trigger group, drawing heavily from the ArmaLite AR-18 design. Production ceased when Sterling Armaments closed in 1988.

Chapters

  1. 00:03Introduction to Sterling Rifles Series
  2. 00:13Sterling Armament Corporation History
  3. 00:24Sterling's Infantry Rifle Development
  4. 00:33ArmaLite AR-18 Licensing
  5. 00:50Development of the Light Automatic Rifle (LAR)
  6. 01:00The SAR-80 (Singapore Assault Rifle)
  7. 01:49Introduction to the SAR-87
  8. 02:00Promotional Literature and Jane's Appearance
  9. 02:40SAR-87 Configurations
  10. 03:09Examining Serial Number Four
  11. 03:20Receiver Markings
  12. 03:34Selector Markings
  13. 03:41Trigger Group Differences
  14. 03:46Controls: Magazine Release, Bolt Hold Open
  15. 04:05Non-Reciprocating Cocking Handle
  16. 04:26Sighting Arrangements
  17. 04:43Carrying Handle Mount
  18. 04:48Receiver Construction
  19. 04:52Detachable Trigger Group
  20. 04:58Stock and Pistol Grip
  21. 05:08Handguard Design
  22. 05:23Adjustable Gas Block
  23. 05:51Muzzle Device
  24. 06:10Flash Suppressor Function
  25. 06:13Bayonet Lug and M16 Pattern Bayonet
  26. 06:40Ambidextrous Safety Selector
  27. 07:02Ergonomics and Weight
  28. 07:20Second Variant: Carrying Handle
  29. 07:38Dust Cover Absence
  30. 07:55Slimmer Handguard Variant
  31. 08:32SAR-87 Disassembly Overview
  32. 08:42Disassembling Serial Number One
  33. 08:50Initial Disassembly Steps
  34. 09:32Removing the Butt Stock
  35. 10:13Removing the Bolt Carrier Group
  36. 10:56Stripping Hand Guards
  37. 11:52Internal Mechanism: Piston Rod
  38. 12:01Long Stroke Gas Piston System
  39. 12:31LAR vs. SAR-87 Gas System Confusion
  40. 13:11Gas Adjustment Settings Explained
  41. 13:45Removing the Trigger Group
  42. 14:05Trigger Mechanism: Stoner/ArmaLite Influence
  43. 14:46Automatic Fire Trip Mechanism
  44. 15:11SAR-87's Bizarre Tripping Mechanism
  45. 16:24Weird Bolt Carrier: Anti-Pre-Engagement System
  46. 17:17Sterling's Overly Complicated Lever System
  47. 17:32Extractor Retaining System
  48. 17:45Tungsten Weight in Bolt Carrier
  49. 18:05Late Development and Export Only
  50. 18:14Sterling Armaments Closure in 1988
  51. 18:36Derivative Design and Lack of Production
  52. 18:53Production Numbers Unknown
  53. 19:08End of the Sterling Rifle Series
  54. 19:12History of Sterling Attempts to Develop Rifles
  55. 19:23Tube Guns and 7.62 NATO Attempts
  56. 19:35Pivot to 5.56 and Infantry Rifles
  57. 19:43LAR, SAR-80, and SAR-87 Comparison
  58. 20:19Revival of Sterling Company Name
  59. 20:43Royal Armouries Collection of Prototypes
  60. 21:10Call to Action: Donate, Subscribe, Visit

Frequently Asked Questions

What is the Sterling SAR-87 assault rifle?

The Sterling SAR-87 is a late-stage prototype assault rifle developed by Sterling Armaments in the late 1980s. It was intended as a potential infantry rifle, drawing inspiration from designs like the ArmaLite AR-18, but never entered mass production due to the company's closure.

What are the key technical features of the Sterling SAR-87?

The SAR-87 features a long-stroke gas piston system, an ambidextrous safety selector, a detachable trigger group, and an adjustable gas block. Its sighting system is similar to the AR-18, and it has a unique muzzle device for flash suppression.

Why was the Sterling SAR-87 never produced?

The Sterling SAR-87 was never put into production because Sterling Armaments, the company developing it, wound up in 1988. The rifle was still in development at that time and was documented in Jane's Infantry Weapons 1988-89 before its development ceased.

What is the design lineage of the Sterling SAR-87?

The SAR-87 is part of Sterling Armaments' efforts to develop their own infantry rifle, evolving from earlier designs like the Light Automatic Rifle (LAR) and the SAR-80. It is considered a derivative of the ArmaLite AR-18, incorporating many of its design principles.

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