Functions flawlessly - Aero Precision M4E1 Enhanced 8in .300 Blackout Quantum Handguard Complete Upper Receiver

The Fitment between this upper with my LWRC lower was good. Not tight, not loose. I put 300 rounds through it during one trip to the range. I shot 220g, 147g, and 124g rounds through it and there were ZERO issues. The rounds fed and ejected as expected. I dii ok T know if this is important for the review but Incase it is: I did swap my BCG and charging handle over from another upper I had. After inspection I found no abnormal wear or markings that weren’t present before use. I would definitely recommend this product.