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Is chamber 3" — 2 Answers

by MRED, from OR, United States Asked on December 26, 2024

Name IMG AR-15 .410 19.25in Complete Upper Receiver w/10 Roumd Magazine (3.7)
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Answered by Spike, member, from NY, United States, on June 01, 2025

I read somewhere that the barrel is stamped 3inch but the reason they say max length 21/2 inch is because AR15 mag wells aren’t big enough to make a 3 inch shell compatible magazine so u could hand load a single round but you can not feed 3 inch shell through a magazine

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Answered by Brakes, member, from TN, United States, on May 03, 2025

The "instructions" included specify only 2 1/2" shells.

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Last updated 2026-01-29 UTC.