I was in the process of an LR.308 build and ordered a .308 complete buffer assembly from Delta Team Tactical. I received the part from them but was waiting for the barrel and bolt carrier group that I ordered from a different company to come. It literally took me a year just to get the parts to build the rifle. Once I got the rifle together I figured out that the bolt carrier group would not travel far enough back for the bolt catch to work even when using the charging handle. I checked the spring next to my sons .308 and found out that they had sent me the wrong spring. I emailed pictures and an explanation along with my order number and got a reply that because my order was so old they couldn’t help me. I replied again the wrong parts are new it was the wrong spring and I would send it back to them in exchange for the right one. They refused to send me a $10.00 spring to keep my business and I have purchased many other things from them. Never again.