These tubes work well enough. - JE Machine Tech A2 .223/.308 Rifle Length Buffer Tube

I found these tubes to be 1/16" shorter than most. They actually work very well with the Magpul Moe Non-adjustable rifle stocks. I used one with one of them and the other with a A2 styke sock using a 1/16" thick washer up under the stock spacer. I glued the washer in because it's the only one that needs it. All in all, this was to stop the stock spacer from ratting inside the stock and keep everything tight. These tubes were inexpensiv yet heavy duty.