80Deal ScoreIn Stock

Stern Defense AR-15 Magazine Well Adapter M&P 9/40 and SIG Sauer P320/P250 Magazines CNC Machined Aircraft Grade Aluminum Black

Name: Stern Defense AR-15 Magazine Well Adapter M&P 9/40 and SIG Sauer P320/P250 Magazines CNC Machined Aircraft Grade Aluminum Black
Brand: Stern Defense
Availability: InStock
Rating: 4.333333333333333 (3 reviews)

$166.64

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Brand: Stern Defense
Color: Anodized Black
Category: Gun Parts
Gun Part Type: Lower Receiver
UPC: 850001176217
MPN: 001SDMAGADMP9AND40P32

Overview

The Stern Defense Mag-AD9 adapter allows standard mil-spec AR-15 lower receivers to utilize 9mm or .40 S&W magazines from SIG Sauer P320/P250 platforms. Constructed from 6061-T6 aircraft-grade aluminum with a Type 3 hard-coat anodized black finish, the adapter features an ergonomic magazine release and a 4140 NiB-coated feed ramp to ensure reliable feeding. The unit includes a last-round hold-open feature and allows for stock compatibility with all other firearm components, excluding the bolt and barrel. The adapter measures 4.4 x 3.45 x 8.65 inches and weighs 0.6 pounds.