“Picked up a set for each of my last 2 builds. I actually have aero keymods on 4 different guns. 2 with the enhanced upper and 2 with the bar barrel nut. I highly recommend this set. Makes putting together your upper super easy.
Monmouth is the best price you will find and awesome customer service.”
“I've never heard of Monmouth reloading butt the deal was so good I took a chance. Shipping was fast and this m4e1 is by far the best hangaurd/upper I've played with. The gas tube basically lines up the gas block perfectly. I would buy again for sure.”
