Combat Armory Billet AR15 Pistol

Published on March 2, 2023
Duration: 11:55

This guide details the assembly of an AR-15 pistol using a Combat Armory billet receiver set. It covers the installation of key components including a Rize Armament trigger, Strike Industries accessories, an NBS barrel, and a KAK Industries flash can. The build emphasizes cost-effectiveness and functionality for suppressor use, with notes on component fitment and performance after initial testing.

Quick Summary

The Combat Armory AR-15 pistol build utilizes an affordable billet receiver set, an NBS 10.5" barrel, and a Rize Armament Patriot trigger. An H2 buffer is recommended for this configuration to manage gas, ensuring reliable cycling and ejection. The build highlights cost-effectiveness and functional design.

Chapters

  1. 00:00Introduction to the Combat Armory AR Pistol Project
  2. 03:38Initial Build Overview and Round Count
  3. 12:00Naming the Build: Combat Armory AR Pistol
  4. 21:18Combat Armory Billet Receiver Set Details
  5. 30:04Supporting the Channel: Like, Share, Subscribe
  6. 56:05Component Sourcing: AR-15 Discounts and Combat Armory
  7. 103:05Motivation for the Build: Suppressor Waiting Period
  8. 115:00Barrel Selection: 10.5" NBS vs. 12.5" Ballistic Advantage
  9. 144:00Suppressor Fitment Issues with Shorter Barrels
  10. 167:06Affordability of Combat Armory Receiver Set
  11. 179:08Putting the 10.5" Barrel and 9.3" Handguard Together
  12. 189:03Build Walkthrough: Butt to Muzzle
  13. 201:03SBA3 Brace and Buffer Tube Assembly
  14. 216:03Buffer and Spring Configuration (H2 Buffer)
  15. 223:03Strike Industries Adjustable Grip Review
  16. 243:08Combat Armory Billet Lower and Upper Features
  17. 258:03Rize Armament Patriot Trigger Deep Dive
  18. 278:08Affiliate Disclosures: Rize Armament and AR-15 Discounts
  19. 289:08Strike Industries Polymer Dust Cover
  20. 317:08Basic Lower Parts Kit from AR-15 Discounts
  21. 322:08Strike Industries Safety, Forward Assist, and Charging Handle
  22. 340:08Toolcraft TIN Bolt Carrier Group
  23. 347:08Primary Arms Optic
  24. 352:08NBS 9.3 Barrel and Dirty Bird Industries
  25. 363:08Gas Block and Gas Tube
  26. 370:0810.5" NBS Barrel Revisited
  27. 375:08Strike Industries Sling Mount
  28. 387:08KAK Industries Flash Can / Sound Forwarder
  29. 405:08Trigger Demonstration: Light and Short Reset
  30. 438:08Combat Armory Receiver Close-up
  31. 443:08Strike Industries Ambi Safety Selector
  32. 455:08Toolcraft TIN BCG and Strike Industries Charging Handle
  33. 472:08Upper and Lower Receiver Fitment Analysis
  34. 504:08Shooting Impressions: Smooth and Accurate
  35. 509:08Buffer Choice and Ejection Pattern
  36. 532:08Reliability and Malfunction-Free Operation
  37. 540:08Magazine Compatibility
  38. 556:08Combat Armory Finish Quality
  39. 576:08Unique Rear Pin Detent Installation Feature
  40. 623:08Conclusion: Combat Armory 10.5" AR Pistol
  41. 629:08Long-Term Update Plans
  42. 646:08Affiliate Status and Partnerships
  43. 663:08Link to Website for Full Build Details
  44. 698:08Supporting the Channel via Affiliate Links
  45. 712:08Outro and Thanks for Watching

Frequently Asked Questions

What are the key components of the Combat Armory AR-15 pistol build?

The build features a Combat Armory billet upper and lower receiver set, an NBS 10.5" barrel, a Rize Armament Patriot trigger, Strike Industries accessories like an adjustable grip and ambi safety, a Toolcraft TIN bolt carrier group, and a KAK Industries flash can. An SBA3 brace is used for the pistol configuration.

Why was an H2 buffer recommended for this 10.5" AR pistol build?

An H2 buffer is recommended for shorter barrels like the 10.5" NBS barrel to help manage gas pressure and prevent overgassing. This leads to more reliable cycling and ejection, with casings typically just kissing the brass deflector.

What makes the Combat Armory billet receiver set stand out for budget builds?

The Combat Armory billet upper and lower receiver set is exceptionally affordable, often costing around $80-$85. This makes it an attractive option for builders looking to create a functional AR-15 pistol without a high price tag, while still offering good fitment.

What is the unique installation feature on the Combat Armory billet lower receiver?

The Combat Armory billet lower receiver has a unique feature where a hole is drilled upwards to allow for easier installation of the rear pin detent spring and detent. This simplifies a common assembly step compared to traditional methods.

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