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Sorry guys, but Ironglowjr will not likely be participating. He was on another thread back in 2013, but got served a bunch of crap by somebody, not anybody in this thread.and he dropped out.
I can speak to him , to see if he will come back, but he is very busy now. He still has his gunsmith shop in operation and also is part of a country-rock band that is very busy in the KC area.
His main job is with NATO..as a weapons tester and designer, but I can't tell you anything about that..since he can't tell me anything about it.
He carries his top secret clearance...my clearance was only secret , it's expired, and I clearly have no "need to know".. so I don't get any info.
If he had stayed with GBO, he would have been a great source of info, especially for the M16 & AR rifles
Below, see rifle and bench where he worked for a well known sniper rifle firm which furnished among others, Chris Kyle.
Note the extra barrels in the background..
Second photo, a rifle he built for a client in his own shop. Yes, he had personal sniper experience..since he and another were designated snipers (overwatch) for their Marine Spec Ops (MARSOC) unit.
He builds sniper rifles for police departments, most in .308, since that is the ammo the police departments get. Sometimes a 6.5 Creedmore.