I fixed the BCA Bolt Action Upper! Upgraded with ED-LHT 3-15x50

Published on May 24, 2026
Duration: 8:01

This guide details how to improve the reliability of a Bear Creek Arsenal Bolt Action AR upper. The process involves thorough cleaning, lubrication, and a crucial step of buffing the bolt lugs to ensure smooth operation. Removing the buffer and recoil spring is also recommended for this specific bolt-action configuration. The video also showcases the integration of a Discovery Optics ED-LHT 3-15x50 scope for enhanced precision shooting.

Quick Summary

To fix a sticking bolt on a Bear Creek Arsenal Bolt Action AR upper, disassemble the bolt, clean and lubricate components, and buff the bolt lugs to a shine. Removing the buffer and recoil spring also aids in smoother action cycling for this specific configuration.

Chapters

  1. 00:00Introduction: Discovery Optics ED-LHT Scope
  2. 00:10The BCA Bolt Action AR Upper
  3. 00:16Previous Experience with BCA Upper
  4. 00:48Fixing the BCA Bolt Action Upper
  5. 01:02Mounting the Discovery Optics ED-LHT Scope
  6. 01:26Sponsor Segment: Aura
  7. 01:43At the Range: BCA Upper with ED-LHT Scope
  8. 01:516.5 Grendel Caliber and Scope Suitability
  9. 02:15View Through the Scope
  10. 02:32Loading Ammunition
  11. 02:42First Shots and Grouping
  12. 03:16Reviewing the Target Cam Footage
  13. 03:41Final Thoughts on the BCA Upper Performance
  14. 04:48Conclusion and Call to Action

Frequently Asked Questions

How can I fix a sticking bolt on a Bear Creek Arsenal Bolt Action AR upper?

To fix a sticking bolt on a BCA Bolt Action AR upper, first disassemble the bolt and thoroughly clean and lubricate all components. If the issue persists, carefully buff the bolt lugs to a smooth, shiny finish. Removing the buffer and recoil spring can also improve action smoothness for this type of upper.

What is the Discovery Optics ED-LHT Gen 2 scope?

The Discovery Optics ED-LHT Gen 2 is a 3-15 power first focal plane rifle scope featuring Japanese ED glass. It's noted for its clarity and thin reticle, making it suitable for precise aiming at various distances.

Is the Discovery Optics ED-LHT 3-15x50 scope good for a 6.5 Grendel build?

Yes, the ED-LHT 3-15x50 scope is considered a good match for a 6.5 Grendel build, especially for distances under 600 yards. Its magnification range and clarity are well-suited for this caliber and application.

What modifications were made to the Bear Creek Arsenal Bolt Action Upper?

The primary modification to the Bear Creek Arsenal Bolt Action Upper was addressing the sticking bolt by thoroughly cleaning, lubricating, and buffing the bolt lugs. The buffer and recoil spring were also removed to enhance the bolt action's smoothness.

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