Img .410 upper dont buy it - IMG AR-15 .410 19.25in Complete Upper Receiver w/10 Roumd Magazine

First try didnt cycle a round. The piston system traveled too far and got stuck after first round. I made a shim to limit travel by about an 1/8 inch worked good for about 25 rounds with federal 2 1/2” 1330fps rounds then the ejector rod bent and broke also the collar that pushes rod out got damaged Ive been trying to get replacement parts from from img for a couple weeks no luck they asked for pictures. I sent then no response
Dont waste your time Get a bear creek arsenal .410 upper instead