ProMag RM-10 RollerMag AR-15 223/5.56 Black

A: John, yes Sir, it will fit both no issue Sir. Welcome and stay safe!

A: Will it fit? Yes. AR15 mags are pretty universal. But not all brands are made the same, if you buy A promag only buy one at 1st to see how well it functions ( promags have a tendency to break rather quickly) I highly recommend The Magpul P-Mag as this is the exact magazine used by the US marine Corp 10 rounders can be found here https://magpul.com/firearm-accessories/pmags/pmag10ar-m4genm3-5-56x45.html?mp_global_color=118 Lancer Brand Mags are solid too https://www.larue.com/products/lancer-l5awm-5-56-10-round-magazines/ Magazines in firearms are one the biggest causes of misfeeds and malfunctions ( the other big one is bad ammo) With high quality mags only costing a couple bucks more its highly advisable to get the higher quality ones so they'll function when you need them most

A: WILL FIT, but DON'T BUY bc promag roller mag has really reliability issue. I hope this helps.

A: yes they will fit however being promag the function will be hit or miss