I have a matched psa Sabre 15 enhanced ambi receiver set in great shape. I put together and then decided I wanted to try the dirty bird ambi receiver and swap everything over to that power and a bcm upper. I out maybe 250rss through the set when it was built as a 10.3 gun. This one has the right side ambi bolt lock and release using the lever like the new hk and sig style ambi lowers not just a release like the majority of ambi lowers. I have other parts as well if anything might be looking for also but the receiver set I just have no use for since I got the new receiver and I have 5 other lower receivers. Message for more info or pictures REDACTED no calls and price is pretty solid