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:Â 6061 T6 Aircraft-Grade Aluminum.
- Precision CNC
- Lightweight, ergonomic design
- Installs in seconds
- Color: Black
- Made in the USA
SKU: MEG6510
SKU: 556MOD2ODG10
SKU: AR1520MOD2FDE
SKU: AR1520MOD2ODG
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