Mossberg 590 shockwave : modifications and patterning

Published on November 26, 2020
Duration: 9:45

This video details modifications made to a Mossberg 590 Shockwave for home defense. Key upgrades include installing an SBA4 brace, a Magpul foregrip, a red dot optic (Holosun 403B), and a light. The presenter also discusses the 'cruiser ready' storage method and patterning results with buckshot at approximately 15 yards, noting a wide but centered pattern.

Quick Summary

The Mossberg 590 Shockwave was modified for home defense with an SBA4 brace, Magpul foregrip, and Holosun 403B red dot optic. The presenter demonstrated 'cruiser ready' storage and shared patterning results showing effective buckshot spread at room distances.

Chapters

  1. 00:35Red Dot Optic Installation
  2. 01:04Buffer Tube Adapter & Pistol Grip
  3. 01:12SBA4 Brace Installation
  4. 01:24Foregrip Modification
  5. 01:50Light Mount and Light
  6. 02:05Shell Carrier Side Saddle
  7. 02:27Rail and Red Dot Optic
  8. 03:15Patterning Test Setup
  9. 03:25Ammunition Types
  10. 04:05First Shot Patterning
  11. 05:01Closer Range Sighting
  12. 05:52Testing Other Buckshot Loads
  13. 07:01Safety Location Downside
  14. 07:33Cruiser Ready Storage Method

Frequently Asked Questions

What modifications were made to the Mossberg 590 Shockwave in the video?

The Mossberg 590 Shockwave was modified with a buffer tube adapter, SBA4 brace, Magpul foregrip (requiring minor fitting), an Odin Works light mount with a Surefire light, a four-shell carrier side saddle, and a Holosun 403B red dot optic.

How does the SBA4 brace affect the shooting position on a Mossberg 590 Shockwave?

When using the SBA4 brace against the shoulder, it results in a low cheek weld or chin weld, rather than a traditional cheek weld, which may require an adjustment period for aiming.

What is 'cruiser ready' mode for a home defense shotgun?

Cruiser ready mode means the shotgun has an empty chamber, the trigger is pulled (safety off), and the magazine is loaded. This allows the user to simply rack the slide to chamber a round and be ready to fire.

What were the patterning results for buckshot at approximately 15 yards?

Both SB 12-gauge non-pellet double-aught buckshot and Sterling 9-pellet buckshot produced wide but centered patterns at approximately 15 yards, with all pellets hitting the target, considered effective for room distances.

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