Flint River Armory CSA45

Published on February 4, 2017
Duration: 22:27

The Flint River Armory CSA45 is a unique AR-styled Pistol Caliber Carbine (PCC) chambered in .45 ACP, featuring a short-stroke gas piston and rotating bolt system for smoother operation. It boasts AR-15 ergonomics, compatibility with standard AR-15 triggers, and a rugged 6061 aluminum receiver. Testing shows good accuracy potential, even at extended PCC ranges.

Quick Summary

The Flint River Armory CSA45 is a unique Pistol Caliber Carbine (PCC) featuring a short-stroke gas piston and rotating bolt system, unlike typical blowback designs. It offers AR-15 ergonomics, accepts standard AR-15 triggers, and is constructed from rugged 6061 aluminum, currently chambered in .45 ACP with future caliber plans.

Chapters

  1. 00:00Intro & Shooting Demo
  2. 00:29Design & Ergonomics
  3. 01:07Operating System: Gas Piston & Rotating Bolt
  4. 01:44Calibers & Proprietary Magazines
  5. 02:16Barrel, Construction & Configurations
  6. 04:32Trigger Compatibility & Field Stripping
  7. 06:05Gas Block & Rail System Access
  8. 08:19Accuracy & Barrel Rigidity
  9. 10:00Long Range Testing
  10. 11:38Velocity Data & Conclusion

Frequently Asked Questions

What makes the Flint River Armory CSA45's operating system unique?

Unlike most Pistol Caliber Carbines (PCCs) that use a blowback system, the CSA45 employs a short-stroke gas piston and a rotating bolt head. This design aims for a smoother recoil impulse and a cleaner-running firearm.

Can I use standard AR-15 magazines in the CSA45?

No, the CSA45 utilizes proprietary magazines specifically designed to ensure reliability with its unique rotating bolt system. While it shares AR-15 style ergonomics, magazine compatibility is not standard.

What calibers are available or planned for the CSA45?

The CSA45 is currently chambered in .45 ACP. Flint River Armory has plans to release variants in 9mm, .40 S&W, and 10mm in the future.

Is the CSA45 compatible with standard AR-15 triggers?

Yes, the CSA45 is designed to be compatible with standard AR-15 trigger packs. This allows users to easily install aftermarket triggers from brands like Geissele or Timney.

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