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Is this not compatible with an aero m5 upper? I bought one and can't get the upper past the locking lugs. — 1 Answer

by Matt, from OH, United States Asked on September 24, 2020

Name Geissele AR-10/SR25 Reaction Rod (4.2)
$243.99 $210.00 Save 14%
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Answered by Kurt Colbourne, Gear Expert, from IL, United States, on February 10, 2021

This should be compatible with the M5 upper. You would just slide it in from the back of the receiver until it contacts the lugs in the barrel.

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