I'm new to "modularity" and I am thiking of purchasing a Vtac model. Do you know whether M17 magazines are compatible with this model?

Thanks in advance for your assistance.

"Full Size' Frame = 17rnd mags (or the 21rnd).
"compact" frame = 15rnd mag (or 17 or 21)
Subcompact = 12rnd (or 15/17/21)
You can't use lower capacity due to grip length (unless neutered 10rnd for locations that require it)

M17 & Vtac are full size.