Stern Defense DEF. Magazine Adapter AD9 S&W M&P/SIG P320 9/40 Magazines

FEATURES:
Made in the U.S.A.
Constructed from 6061 T6 aircraft grade aluminum
4140 NiB coated feed ramp
Hard coat anodized type 3
Sturdy Construction
Ergonomic mag release
Works with all generations of M&P magazines
Works with P320 and P250 magazines
Works with any mil spec ar15 lower receiver
All gun components besides the Bolt and Barrel remain stock