Brownells has lower receivers in stock. 219.
MAG TACTICAL SYSTEMS - AR15 Lightweight Lower Receiver
100% Satisfaction. Lifetime Returns.
http://www.brownells.com/rifle-part.../lightweight-gen-4-ar15-lower-flat-dark-earth
MAG TACTICAL SYSTEMS - AR15 Lightweight Lower Receiver
100% Satisfaction. Lifetime Returns.
http://www.brownells.com/rifle-part.../lightweight-gen-4-ar15-lower-flat-dark-earth