Grand Power SP9A3 Self Defense Pistol || A3 Stribog VS Stribog A1

Published on August 23, 2020
Duration: 15:21

This review compares the Grand Power SP9A3 delayed blowback pistol to its A1 direct blowback predecessor. The A3 features a delayed blowback system for reduced reciprocating mass and a softer shooting experience, making it ideal as a suppressed 9mm PDW. Key upgrades include steel-reinforced magazine feed lips to address brittleness issues found in the A1. While both systems are effective, the A3 demonstrates better suppressor performance and a noticeable difference in recoil impulse, though the practical impact on semi-automatic fire is debated.

Quick Summary

The Grand Power SP9A3 Stribog features a delayed blowback system, contrasting with the A1's direct blowback. This design reduces reciprocating mass for a softer shooting experience and improved suppressor performance. Magazines have been upgraded with steel feed lips to enhance durability.

Chapters

  1. 00:00Magazine Feed Lips
  2. 01:25Introducing the SP9A3 Delayed Blowback
  3. 02:01SP9A3 Delayed Blowback Mechanism
  4. 02:13Magazine Upgrades
  5. 04:04Chronograph Testing
  6. 05:27Delayed vs. Direct Blowback Explained
  7. 06:16Recoil Measurement Apparatus
  8. 07:28Recoil Test - SP9A3
  9. 07:41Recoil Test - SP9A1
  10. 08:36Recoil Test Results Discussion
  11. 10:10Suppressor Performance Comparison
  12. 10:41Bowers Verse 9S Suppressor
  13. 11:05Suppressed Shooting Test
  14. 13:32Malfunction: Failure to Lock Back
  15. 14:10Malfunction: Dead Trigger
  16. 14:37Shooting Impressions
  17. 14:41Magazine Upgrade Significance

Frequently Asked Questions

What is the main difference between the Grand Power Stribog A3 and A1?

The primary difference is the operating system: the SP9A3 uses a delayed blowback system, while the A1 uses direct blowback. This results in the A3 having less reciprocating mass, a softer shooting experience, and better suppressor performance.

What improvements were made to the Stribog A3 magazines?

The SP9A3 features upgraded magazines with steel augmentations on the feed lips. This was a direct response to field testing that showed the original A1 magazines' feed lips could become brittle over extended use.

How does the delayed blowback system of the SP9A3 affect shooting dynamics?

The delayed blowback system reduces reciprocating mass by delaying the bolt unlock. This generally leads to a softer shooting impulse and potentially less felt recoil compared to direct blowback firearms.

Is the Grand Power SP9A3 a good suppressor host?

Yes, the SP9A3 is highlighted as an ideal suppressor host. Its delayed blowback system contributes to better suppressor performance and a more refined shooting experience when suppressed, compared to the direct blowback A1.

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