A Bolt Action .45 ACP Pistol?

Published on June 16, 2026
Duration: 11:41

This review of the ACOS Arms Baza Pistol, a straight-pull bolt-action .45 ACP firearm, focuses on its potential as a compact, lightweight suppressor host. The reviewer details its AR-platform compatibility, Glock 21 magazine usage, and the advantages of its bolt-action design in eliminating operational weight. Accuracy testing at 200 yards is conducted, highlighting the inherent limitations of .45 ACP ball ammunition while demonstrating the pistol's capability for engaging targets at extended ranges with some effort.

Quick Summary

The ACOS Arms Baza is a straight-pull bolt-action .45 ACP pistol designed for compactness and light weight, ideal as a suppressor host. It features an 8.5-inch threaded barrel, Glock 21 magazine compatibility, and weighs about 4.5 pounds. While capable of 200-yard engagements, its accuracy is limited by the .45 ACP cartridge and ball ammunition.

Chapters

  1. 00:00Introduction to the Baza Pistol
  2. 00:26Barrel and Threading Specifications
  3. 00:45Rail Design and Weight Savings
  4. 00:49Magazine Compatibility and Bolt Action Advantage
  5. 01:02Weight and Accessory Latitude
  6. 01:13AR Accessory Compatibility
  7. 01:19Trigger Options and Bolt Handle Customization
  8. 01:54.300 Blackout vs .45 ACP for Suppressed Use
  9. 02:04Cost Comparison: .45 ACP vs .300 Blackout
  10. 02:15Baza Pistol Overview
  11. 02:45Initial Impressions and Weight
  12. 02:52Accuracy Testing Setup
  13. 03:00Shooting at 200 Yards
  14. 03:27Accuracy Results and .45 ACP Limitations
  15. 03:36Makeshift Shooting Position
  16. 04:05Challenges of the Shooting Position
  17. 04:19Walking in Shots at 200 Yards
  18. 04:46Critiques and Continuous Improvement
  19. 04:54Bolt Design Accolades
  20. 05:17Design Changes for Rotating Bolt
  21. 05:43Performance as a Suppressor Host
  22. 05:52Critique 1: Unstaked Castle Nut
  23. 06:04Suggestion: Picatinny Rail Back
  24. 06:11Critique 2: Handguard Pinching
  25. 06:57Conclusion and Recommendation

Frequently Asked Questions

What is the ACOS Arms Baza pistol?

The ACOS Arms Baza is a unique straight-pull bolt-action pistol chambered in .45 ACP. It's designed to be compact and lightweight, making it a potential candidate for use as a suppressor host.

What are the key features of the Baza pistol?

Key features include an 8.5-inch nitrided barrel threaded for suppressors (.578x28), a minimalist rail, Glock 21 magazine compatibility, and a weight of around 4.5 pounds with a brace. Its bolt-action design eliminates typical AR operating components for reduced weight.

How does the Baza pistol perform in terms of accuracy?

Accuracy testing at 200 yards with .45 ACP ball ammunition showed that while targets are reachable, the inherent limitations of the cartridge and ammunition type require effort. It's considered more of a 200-yard engagement tool than a precision rifle.

What are the main critiques of the Baza pistol?

The primary critiques include an unstaked castle nut, which is a safety and stability concern, and a 'pinched' handguard design lacking a torque plate, potentially leading to loosening over time. The reviewer suggests design improvements for future iterations.

Related News

All News →

More Reviews Videos You Might Like

More from The VSO Gun Channel

View all →