Stern Defense Magazine Adapter for M&P & Sig Sauer Magazines

Stern Defense Magazine Adapter for M&P & Sig Sauer Magazines

Product Specs:

Turn your mil-spec AR-15, M4, or M16 lower into a 9mm or .40 S&W powerhouse using your M&P, P320, or P250 magazines. The MAG-AD MP9/40 + P320 installs in seconds with no permanent modifications—perfect for both law enforcement professionals and dedicated civilian shooters.

Featuring true 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