Matrix Engravable Metal Body Receiver Set For 416 Series Airsoft AEG (Color: Black / Blank)

"Did not come with correct pins and screws. Lower did not even fit my polarstar. I installed my engine and i could not pull my trigger back all the way.

"although it does its job, the rails are not mil-spec, so they don't hold ordinary scopes/red dots. The bolts release is fake, and the dust cover is held in by a spring, which means that to access your gearbox you have to peel away the dust cover, and it's not something to be desired. overall it's more of a facade than an actual functioning body.

"You get what you pay for
It showed up and when I pulled back the charging handle and the spring immediately stretched out beyond use and the screws took forever to find the right one to remove the body pins, thrown out same day it was received

"This receiver isn't worth the effort it takes to fit gearboxes/barrel assemblies. I tried to fit two different version 2 gearboxes and both would not fit properly because the holes for the pins that hold the gearbox in place do not line up correctly. Because of this the gearbox sits at a slight angle near the front and blocks the magazines. I ended up taking a lower receiver from one of my friends for my gun build. The upper receiver needed a lot of work to fit the different lower and the barrel assembly. the lug for the main body pin needed to be shaved down so that it would work with the different lower, and the back of the upper needed to be shaved down to make it fit also. Even with the mods there is still a gap between the upper and lower near the back of the gun. There are also tabs that i assume are for locking the barrel in place inside the receiver that needed to be shaved down for it t fit my barrel assembly. Unless you want to do some work to fit the parts to this receiver and want a useless lower receiver, do not buy this.