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What length gas system does this upper have? — 1 Answer

by BGriffin, from TX, United States Asked on June 7, 2022

Name Aero Precision M4E1 Threaded 18in .223 Wylde w/ ATLAS S-ONE Handguard Complete Upper Receiver with Flash Hider (3.8)
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Answered by Hunter, Gear Expert, from OH, United States, on June 16, 2022

The 16" Aero Precision M4E1 Threaded .223 Wylde Upper Receivers have a mid length gas system and the 18" models have a rifle length gas system.

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