if you do opt for several in different calibers, color code the mags to the uppers. Just a dot of paint somewhere on upper and mag to match. easiest way i have found.

And yes, i have multi-caliber lowers that will swap to any standard AR15 upper. You just have the uppers built to your caliber of choice.

I have lowers on all of mine now and I guess its about time to collect a few more for builds for this year. I have not heard of the 410, but i will be researching.


It is what it is.

Inspect what you Expect.

Hunting TN, AL, KY, and IL.