Stern Defense M&P/Sig 320 W/ Foxtrot Mike 9 mm upper
ADDED LOWER AND MOVED TO WTS HANDGUNS
WTS Stern Defense M&P / Sig 320 magwell adapter and Foxtrot Mike 8.5 inch side charging 9mm upper.
Allows you to turn any standard AR 15 Lower into an AR9.
Comes with 4 ETS M&P 9mm 30 round magazines...