My wife loves this upper. For me, I feel the quad rail is a little chonky but not cheese grater grade. The barrel and bcg is top notch, recorded 1.5 moa w/ 125gr supers. No failures in more than 600 rounds of all ammo types. I knocked a star off because of the set screw style of the hand guard and "comp". The provided muzzle device is as good as garbage, Moriarti should just provide a thread cap and let Wish.com handle these "socom comps".

Outstanding quality. Perfect fit for 80%.

Giving this 2 stars because of the muzzle brake and customer service. The threads on the muzzle brake were stripped when I received the upper. It was loose right out of the package. I snugged it up and thought it was good, but it came loose again after 5 rounds fired through it. I emailed the company 2 weeks ago and asked for a new muzzle brake, and no response. Will not be buying from this company again.

Thanks

It functions like a dream the fake suppressor looks cool but the screws won't stay tight and keeps comin off so it's goin to get replaced with something else

I was looking for a Pistol Kit. The one I had my eye on o PSA's site went out of stock. This is my first Build so I decided to just piece it out and enjoy putting it together with parts from here at there. I saw this upper and loved the way the brake looked. I placed my order as a birthday present to myself, I saw it would take 1 - 5 business days for processing, I got the email saying it had shipped, I was expecting 10 - 18 days for shipping. It came in on yesterday 6.4.2020. It looks even better in person. I will be purchasing another upper from Moriarti Armaments. Fast Shipping.. I will do another build and definitely purchase from here again.