Closed Ear Lowers

[izzy]

I'd never have known what to call it either.

[ray1970]

Let’s call them J. Edgar Hoover. Or tater tots.

[Rucker61]

Anderson refers to them as closed ear which is where I picked it up.

[crays]

And there you have it.

And now I have it logged for future reference.

I have a couple, of a different brand, and I like them.

Sent from somewhere

[Irving]

I figured that a closed ear lower was just a gun that wouldn't be open to any of my suggestions.

Me - What do you want to do today?
Gun - Shoot
Me - Well there's that new restaurant over on...
Gun - SHOOT

[esizer]

I have an Aero M4E1 lower I haven't built out yet but it seems completely idiot proof with an integrated trigger guard AND a threaded bolt catch.
I've never had an issue with the trigger guard installation but I have had the bolt catch roll pin go south on me a few times.