Convert your standard mil spec AR 15, M4, M16 lower assembly to use 9mm and .40 S&W M&P and P320/P250 Magazines! The Mag-AD series adapters install in seconds. Boasting a last round hold open feature making them a breakthrough product and a must-have for law enforcement and civilian gun enthusiasts alike.
The Stern Mag-AD series adapters are made of aircraft grade aluminum, lightweight with ergonomic design.
Note: These adapters require the use of a 9mm or 40S&W barrel, "depending on chosen caliber" and a Glock cut bolt.
Don't Have a barrel, want one? We have you covered.
⦁ 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