Description
Stern Defense Magazine Adapter for M&P & Sig Sauer Magazines
Product Specs:
Turn yourmil-spec AR-15, M4, or M16 lowerinto a9mm or .40 S&W powerhouseusing yourM&P, P320, or P250 magazines. TheMAG-AD MP9/40 + P320installs in seconds with no permanent modifications—perfect for both law enforcement professionals and dedicated civilian shooters.
Featuringtrue last-round hold open, this is one of the most trusted magazine conversion systems available today.
- 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
Additional information
| Weight | 10 oz |
|---|---|
| Dimensions | 18 × 11 × 10 cm |









