Palmetto state armory sale is over. PSA regular price is $79.95. Spikes at Aim surplus are $79.95, free shipping. Surplus Ammo and Arms has their lower at $74.99, they have the Aero lower for $79.99.
Ironically, the SAA lower sells for only $59.95 at AIM Surplus when it is in stock there:
http://www.aimsurplus.com/product.as...ver&groupid=53
A "Mil Spec" lower is a class 3 weapon, so there's no such thing as a Mil Spec semi auto lower.