Just received my order for 2 used factory S&W mags for the 4006 from CDNN. They were 19.99 each. Came with blue followers and pro-mag brand bases.

Any idea why these things have a Pro-Mag stamped base?

Just seems odd to me. Should have no bearing on function, but begs they question why they are not factory bottoms. Maybe they were police trade-ins and the factory bases were damaged?

Rosewood