1st Shots- Icon Marketing Group 12ga Upper + PSA 308 Lower + @GreyMarketResearch Super Safety 😈

Name: 1st Shots- Icon Marketing Group 12ga Upper + PSA 308 Lower + @GreyMarketResearch Super Safety 😈
Uploaded: 2026-03-10T21:32:05+00:00
Duration: 2 min 27 s
Channel: PoorBoy Arms

PoorBoy Arms

Published on March 10, 2026

Category: Reviews

Duration: 2:27

This video showcases the initial live-fire testing of a unique custom firearm build: an Icon Marketing Group (IMG) 12-gauge upper receiver paired with a Palmetto State Armory (PSA) .308 lower receiver, featuring a Grey Market Research Super Safety. The builder, Jordan from PoorBoy Arms, demonstrates the process of testing various 12-gauge ammunition types, including birdshot and different velocity shells, while noting necessary modifications and potential cycling issues. The build is ultimately deemed a success despite minor ammunition-related malfunctions.

Quick Summary

This custom 12-gauge AR build combines an IMG upper with a PSA .308 lower and a Grey Market Research Super Safety. Testing involved birdshot, dove shot, and various velocity shells. While generally successful, a failure to eject occurred, suggesting potential gas system tuning might be needed.

Chapters

00:00Introduction & Build Components
00:19Testing Plan & Ammunition Selection
00:35First Shot Preparation
00:44Initial Firing & Reload
00:53Successful Shot & Performance
01:06Celebrating Build Success
01:22Recoil System Specifications
01:38Continued Firing & Observations
01:54Addressing Ejection Issues
02:15Final Thoughts & Showcase

Frequently Asked Questions

What are the key components of the custom 12-gauge AR build shown in the video?

The custom build features an Icon Marketing Group (IMG) 12-gauge upper receiver, a Palmetto State Armory (PSA) .308 lower receiver, and a Grey Market Research Super Safety. It also utilizes a stubby 5.6 oz .308 buffer and a Sprinco orange spring for its recoil system.

What types of 12-gauge ammunition were tested in this custom AR build?

The testing included a variety of 12-gauge ammunition, specifically mentioning birdshot, dove shot, and shells with both low and high velocities. This diverse selection aimed to assess the firearm's reliability across different loads.

Were there any malfunctions observed during the testing of the custom 12ga AR build?

Yes, a failure to eject a shell was noted during the live-fire testing. The builder mentioned the gas system was on its lowest setting, suggesting potential tuning might be required to fully resolve cycling issues with certain ammunition types.

What modifications were needed for the IMG 12ga upper to work with the PSA .308 lower?

The builder indicated that modifications, including trimming, were necessary to ensure the IMG 12-gauge upper receiver would properly function with the PSA .308 lower receiver. This highlights the custom nature of the build and the need for component compatibility adjustments.

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