Link please to a government used steel receiver on a M16 or AR-15 civilian model.

If no link company name would do.

Eh, GM just said his Bushmaster is built on a steel receiver. It doesn't really matter what it's made of, though, as I've said.

Maybe I'm wrong, but the thing feels too damn heavy to be aluminum to me.

Actually on the Bushmaster Website, it says that their receivers are either aluminum or carbon fiber, no steel, so you probably have an aluminum one, and yes, they are a bit heavy even with this. Aluminum isn't a helluva lot lighter than steel, depending on what's being forged.

Huh, I learned something. :)

To bad I was hoping to build some steel M16's so the actors have a harder time destroying them and listen to them bitch about the weight. They bitch about the weight of the M4 nothing but whiners.

Um, may compays make 556 chambers, actually, most do. very few are 223 only. NATO-spec FMJ is common, and geerally cheaper.

The only ones that interest me are the old Colt Sporters which are stamped .223, so the're out there. I haven't seen 5.56 NATO in a shop, but I see .223 everywhere, so maybe it's the area, too.

A lot say ".223 caliber" biut if you read manuals it will say both are safe.

Speaking of AR-15s, my dad now has two Colt A2 HBARs, and one A1 SP1 in his shop. One HBAR is pre-ban so it can keep its bayonet lug and A2-flashhider, while the other is post ban, so my dad sadly had to grind off the bayonet lug and replace the flash hider with a Miculek muzzle break. It's still a nice looking gun, but it's been '96 neutered. Clinton/Biden, you cocksuckers.

The SP1 was pretty nice, I didn't check the caliber markings though.

This is the most "assault rifles" my dad's ever had out in the shop. And now he's bought the Bushmaster and the Jager AP-80, so I'm pretty happy. I'm cradling the Jager as I speak. :D Hell, I'll take a picture...