AR-15 barrel recess
By Copter Doctor
I've been looking at AR-15's. I have my eye on a Bushmaster, but am unfamiar with the recessed area in the barrel between the front site and flash suppressor. What gives? I'd think this would be a 'weak' spot (subject to heat stresses) ...
Pennsylvania Firearm Owners Associati... - http://forum.pafoa.org/

New AR-15 ejection port cover
By pdm
From Noveske.
Northeastshooters.com - http://www.northeastshooters.com/vbulletin/

WTB AR-15 Lower
By cyberlogicx
Hey everyone, I'm looking to buy an AR-15 lower for a first AR project build! I don't know much about them, but I know I want to start from the ground up. Let me know, thanks!
Northeastshooters.com - http://www.northeastshooters.com/vbulletin/