Stern Defense AR-15 Magazine Well Adapter for 9mm/.40 S&W Glock Magazines- Aluminum- Black

Convert your standard mil-spec AR 15, M4, and M16 lower assembly to use 9mm and .40 S&W Glock 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. If you’re considering converting your AR-15 to a 9mm, give the Stern Defense Adapter a thought!

The Stern Mag-AD9 series adapters are made of aircraft-grade aluminum, lightweight with an ergonomic design.

 Please Note:

• These adapters require the use of a 9mm or 40S&W barrel, “depending on chosen caliber” and a Glock cut bolt.
• THIS MUST BE USED WITH A 5.4-OUNCE BUFFER OR HEAVIER WHEN USING A CARBINE SPRING.

Features:

• Standard Pattern AR-15 Lower Receivers
• Compatibility: Glock 17 9mm/.40S&W Magazines
• Last Round Hold Open Feature
• Material: 6061 T6 Aircraft-Grade Aluminum.
• Precision CNC
• Lightweight, ergonomic design
• Installs in seconds
• Color: Black
• Made in the USA