Because of the lock back issues of the enidine buffer on an empty mag and lack of support from the manufacturer, I have decided to purchase a MGI RRB unit. The issue with the enidine buffer has been discussed here for quite some time and it is without doubt that the manufacturer is aware of this. Yet information or notice from them has not been offered. Unlike TWL who upon my querry, promptly answered all my question and provided even more information regarding their buffer. Emails were all quickly replied to and after speaking to him, I have no doubt that he would stand behind his product 100 percent. Are all products perfect, definitely not. Once in a while you purchase a product that needs a little tweaking, wouldn't it be nice if the manufacturer helped you out a bit after taking your money. God forbid somebody looses their life on a product because it malfunctioned. That's why some companies have had recalls.