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What is the difference between the two? — 1 Answer

by James, from NC, United States Asked on July 29, 2020

Name Aero Precision AR15 8in .300 Blackout Barrel Complete Upper Receiver with Flash Hider (5)
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Answered by Tom B, Gear Expert, from IL, United States, on September 30, 2021

APAR610601M1: AR15 Complete Upper w/ No Forward Assist, 8" .300 Blackout Barrel, 7" M-LOK ATLAS R-ONE Handguard - Anodized Black
APAR610501M1: AR15 Complete Upper w/ No Forward Assist, 8" .300 Blackout Barrel, 7" M-LOK ATLAS S-ONE Handguard - Anodized Black

The handguard is different.

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Last updated 2025-11-12 UTC.