With this complete upper receiver, you can finish your new build with confidence that you can handle any situation or that you're over-equipped. Aero Precision built these AR Handguards & Barrels with their ATLAS S-ONE Handguard and 20in 5.56 Rifle length barrel for top-shelf quality. The handguard included with this Aero Precision Complete Upper Receiver w/ ATLAS S-ONE Handguard includes indexing grooves at the 12:00 position for positive grip control during shooting sessions. Also, the top rail on these uppers is cut from the center of the top rail, reducing the weight. There's a quick-disconnect sling socket at the 3:00 and 9 o'clock positions so that you can carry your rifle on your side or use a sling for added mobility. Complete your rifle build with this high quality Aero Precision M4E1 Threaded NATO w/ ATLAS S-ONE Handguard Complete Upper Receiver Package.
