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Will this fit onto a radical firearms upper that originally came with the FQR set up? The barrel nut looks to be the same and clearance specs say 1.8” — 1 Answer

by Benji, from ND, United States Asked on January 26, 2023

Name Aero Precision AR15 Quantum M-LOK Handguard w/o Barrel Nut (4.6)
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Answered by Hunter, Gear Expert, from OH, United States, on September 18, 2023

The Aero Precision AR15 Quantum M-LOK Handguard will work with a Mil-Spec AR15 upper receiver but you will need to use the Aero Precision BAR barrel nut.

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