AR-15 vs AR-10 vs AR-9... Are They Considered "Standard" or "Household" Naming Conventions?

Published on September 1, 2023
Duration: 8:01

This video explores the evolving naming conventions for AR-style firearms, specifically the AR-15, AR-10, and AR-9 platforms. It highlights how modularity has blurred traditional distinctions, leading to the AR moniker becoming a household name. The discussion covers common calibers, intended uses, and the increasing cross-compatibility of parts across different AR platforms.

Quick Summary

The AR-15, AR-10, and AR-9 naming conventions are evolving due to the inherent modularity of AR-style firearms. While AR-15s are known for extensive caliber conversions, AR-10s are becoming more standardized for rifle calibers, and AR-9s represent modular pistol-caliber carbines, often in 9mm.

Chapters

  1. 00:00Introduction: AR Naming Confusion
  2. 00:29AT3 Tactical Intro & Topic
  3. 01:41The AR-10 Platform
  4. 02:52AR-10 Use Cases
  5. 03:35The AR-15 Platform
  6. 04:13AR-15 Caliber Options
  7. 05:22The AR-9 Naming Convention
  8. 05:40Building a 9mm PCC
  9. 06:33What Does AR Style Mean?
  10. 06:46AR-10 & AR-9 Household Names
  11. 07:37Conclusion & Next Video

Frequently Asked Questions

What does 'AR style' mean in firearms?

'AR style' refers to modular semi-automatic firearms that share design principles with the original ArmaLite AR-15. This includes features like a detachable magazine, a pistol grip, and a telescoping stock, allowing for extensive customization and adaptation across various calibers and roles.

How are AR-15, AR-10, and AR-9 platforms different?

The AR-15 is typically chambered in 5.56mm/.223 Rem and is known for extreme modularity and caliber conversion. The AR-10 is a larger platform for rifle calibers like .308 Win and 6.5 Creedmoor, with increasing standardization. The AR-9 is a pistol-caliber carbine, usually in 9mm, often using pistol magazines.

Is the AR-10 platform becoming standardized?

Yes, the AR-10 platform is seeing increased standardization, with designs like DPMS and LR-308 becoming more cross-compatible. This trend makes it easier to find parts for common AR-10 calibers such as .308 Winchester and 6.5 Creedmoor.

Can an AR-15 lower receiver be used for a 9mm build?

Absolutely. A 9mm upper receiver, a blowback bolt carrier group, and a magazine well adapter block can be used with a standard AR-15 lower receiver to create a 9mm Pistol Caliber Carbine (PCC), often referred to as an AR-9.

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