http://tinyurl.com/pcp9aav

This is the lower receiver I assembled for my new AR 15 300 Blackout
Rifle. It is identical in every way to the "standard" 5.56 mm AR 15
lower. The bolt carrier group and charging handle are on a paper
towel...just waiting for me to apply a couple of drops of lube oil.
The upper is in a different vise so I can attach the free-floating
rail and backup sights to the barrel nut.



--
“My heart goes out to the people of Ebola.�
Sarah Palin