Mag Tactical Systems Gen 4 lower...Anyone seen these yet? In person? I wonder what the proprietary tactical alloy is comprised of ?(per the description)
Thoughts?
http://www.brownells.com/rifle-part...r15-lightweight-lower-receiver-prod55523.aspx
Thoughts?
http://www.brownells.com/rifle-part...r15-lightweight-lower-receiver-prod55523.aspx