8.6Blk Build- Faxon, DDC, and SLR First Shots and Already a Favorite Shooter

Published on April 19, 2026
Duration: 13:57

This video details a custom 8.6 Blackout AR-10 build, highlighting its components and performance during initial range testing. The build features a Faxon barrel, SLR components, and a DDC suppressor, demonstrating impressive subsonic performance. The presenter emphasizes the rifle's potential for home defense and its enjoyable shooting characteristics, despite the cost of ammunition.

Quick Summary

This custom 8.6 Blackout AR-10 build features a Faxon 1:3 twist barrel, SLR components, and a DDC suppressor, delivering impressive subsonic performance with velocities around 910 fps. While ammunition is expensive, the rifle offers quiet shooting and good accuracy at 100 yards, making it a viable option for home defense.

Chapters

  1. 00:00Introduction to the 8.6 Blackout AR-10 Build
  2. 00:10SLR Handguard and Components
  3. 00:29DDC Suppressor Performance for 8.6 Blackout Subs
  4. 00:38Testing Subsonic 8.6 Blackout Ammunition
  5. 00:57Cost of 8.6 Blackout Ammunition
  6. 01:04Underwood 300 Grain Subsonic Ammo
  7. 01:18Ammunition Availability and Shipping Delays
  8. 01:2710-Round Magazine for Controlled Firing
  9. 01:35Chambering and Initial Impressions
  10. 01:44Faxon 1:3 Twist Barrel Performance
  11. 01:52First Shots and Sound Impressions
  12. 02:03Subsonic Velocity: 905 FPS
  13. 02:30Zeroing the Rifle at 100 Yards
  14. 02:43Rifle Cycling and Reliability Check
  15. 03:16Sound of the Round Down Range
  16. 03:32Hitting Steel at 100 Yards
  17. 04:19Average Velocity: 910 FPS
  18. 04:34Adjustable Gas Block Tuning Discussion
  19. 04:44Targeting a Phone at 100 Yards
  20. 05:00Capturing the Projectile Trail
  21. 05:19Hard-Hitting Performance of 8.6 Blackout
  22. 05:57Detailed Component Breakdown: DDC Suppressor
  23. 06:18SLR Hub Mount and Muzzle Device
  24. 06:31Faxon Barrel Specifications
  25. 06:52SLR Adjustable Gas Block and BCM Gas Tube
  26. 07:04Faxon Billet Upper and Lower Receiver
  27. 07:20Optics: Primary Arms PLX Mount with SLX Nova Reticle
  28. 07:37Sons of Liberty Gunworks Trigger
  29. 07:46Griffin Armament Charging Handle and SBA 5 Brace
  30. 07:57K2 Plus Grip Preference
  31. 08:04Home Defense vs. Long Range Rifle Considerations
  32. 08:25Reboil Firearms and Sound Impressions
  33. 08:50Comparison to 300 Blackout
  34. 09:08Ammunition Cost and Budget Concerns
  35. 09:25Shooting Distances: 100, 180, 220 Yards
  36. 09:54Drop Analysis at Extended Ranges
  37. 10:24Effective Range for Subsonic 8.6 Blackout
  38. 10:35Anticipation for Supersonic Ammunition
  39. 10:42Range Day Recap: Multiple Calibers Fired
  40. 10:54Virginia Firearm Legislation Concerns
  41. 11:12Definition of 'Assault Weapon'
  42. 11:32Purpose of the Firearm: Defense and Recreation
  43. 11:50Political Projection and Inanimate Objects
  44. 12:14Importance of Voting and Political Engagement
  45. 12:25Call to Action: Like, Comment, Subscribe

Frequently Asked Questions

What are the key components of this custom 8.6 Blackout AR-10 build?

The build features a Faxon 1:3 twist barrel, SLR handguard and adjustable gas block, a DDC DTF suppressor, and a Sons of Liberty Gunworks two-stage trigger. It also includes a Primary Arms optic and an SBA 5 brace.

What kind of performance can be expected from subsonic 8.6 Blackout ammunition in this rifle?

Subsonic 300-grain ammunition averaged around 910 feet per second, producing a quiet shooting experience. The rifle cycled reliably, though some adjustments might be needed. Accuracy was good at 100 yards, with noticeable drop at longer distances.

How does the cost of 8.6 Blackout ammunition compare to other calibers?

The presenter notes that 8.6 Blackout ammunition is significantly more expensive than calibers like 300 Blackout, which impacts the quantity one can afford to purchase and shoot for practice.

What is the estimated effective range for this 8.6 Blackout build for home defense?

For subsonic 8.6 Blackout, the effective range for home defense is estimated to be around 100 yards. Beyond this distance, the projectile experiences a significant drop, making precise hits more challenging.

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