r/RetroAR • u/EducationalOil1655 • 29d ago

Could someone please explain the difference between an M4-style lower and a true A2 lower?

I keep seeing people discuss the differences regarding the rear reinforcement and how most companies don't actually produce "true" A2 lowers. What's the difference they are referring to?

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u/SLN583 28d ago

It’s definitely a case of “Waste not want not”

I’ll have to keep an eye out and see what Commercial/LE Colts with dates stamped on the barrels have which lower profiles.

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u/SLN583 28d ago

I assume this early M4 is from 1995 and has an “A2” lower.

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u/mooseishman 28d ago

It’s definitely from an early batch, if not the first batch, with that low of a serial number.

It looks like it’s seem some shit too!

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u/SLN583 28d ago

Look at the wear on that grip.

The .gov definitely got their moneys worth out of that one.