https://midstatefirearms.com/product/left-handed-builder-bundle-receiver-and-bcg/

shipping available

Want an AR-15 to eject to the left? The only thing that is different is the upper receiver and BCG. Here they are! Convert your old rifle, or start a new build! Includes Left hand ejection receiver and m16 left hand nickel boron bolt carrier group.

• Stag15 A3 Flat top Left Hand Upper Receiver, with dust cover and forward assist
• MSF Left Hand Nickel Boron M-16 Bolt Carrier Group

Lefty southpaws rejoice!