A bit pricey but wow do you get what you pay for!! - Geissele USASOC AR15/M4/M16 Upper Receiver Complete Group

I am blown away by the quality, the fitment of this upper. 1500.00 is a chunk for an upper. You do get the best quality available in a DI gun for this amount though. Bomb proof and will be working long after I am gone. I just wish it had a Keymo muzzle device but that's just a personal preference thing. Surefire does make a hub adapter now at least. I ran 4009 rounds through it when I first got it. I didn't even clean the oil off of it. Ate it all. 55gr, 62gr, 68gr and 77gr. A bit gassy but needs to be for a do it all upper. I will test accuracy this weekend but have no doubt it is at minimum a 1MOA upper. There are claims it is sub-MOA to 500 meters. We shall see. Fantastic buy.