M305 Ejection Problems

[AlbinoMoose]

I took my M305 shorty out for the first time this weekend. It was a blast!

However I think there may be an issue when its ejecting the spent casings. It barely ejects the casing's, maybe 3 or 4 inches up and slightly to the right. I even noticed that one of the casing on the last round went straight up and straight back down into the receiver with the bolt locked open.

Is this normal? If not is there something I can do to correct it? Perhaps an adjustment to the ejector on the bolt?

 

[yomomma]

First make sure your valve is properly in the open position

Second clean it and GREASE it as per specs.....

 

[Pop]

Does it pass the Tilt Test? Also check to make sure the gas piston slides freely and your gas plug is tight. If you've added an aftermarket op-rod spring or spring guide try running it with the OEM parts and see if it improves.