Stern Defense AR15 Mag Well Adapter for M&P .45ACP Mags

Name: Stern Defense AR15 Mag Well Adapter for M&P .45ACP Mags
Brand: Stern Defense
Availability: InStock

Stern Defense · Lower Parts

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Best price

$186.99at OpticsPlanet

In stock Sale checked Oct 2, 2026

Buy at OpticsPlanet

Compare 6 stores

Where to buy

Store	Price	Availability	Buy
OpticsPlanet Best price	$186.99Salechecked Oct 2, 2026	In stock	Buy at OpticsPlanet
Brownells	$186.99checked Oct 2, 2026	In stock	Buy at Brownells
MidwayUSA	$186.99checked Oct 2, 2026	In stock	Buy at MidwayUSA
Ammunition Depot	$187.99checked Oct 2, 2026	In stock	Buy at Ammunition Depot
Battlehawk Armory	$183.44Salechecked Oct 2, 2026	Check store	Buy at Battlehawk Armory
Palmetto State Armory	$210.99Salechecked Sep 30, 2026	Check store	Buy at Palmetto State Armory

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

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Lowest in-stock price in the last 30 days: $186.99 at Brownells. Dashed line = out of stock. Tracking since Sep 28, 2026.

Show the prices as a table

Store	Latest	Lowest	Highest
Ammunition Depot	$187.99	$187.99	$187.99
Battlehawk Armory	$183.44	$183.44	$183.44
Brownells	$186.99	$186.99	$186.99
MidwayUSA	$186.99	$186.99	$186.99
OpticsPlanet	$186.99	$186.99	$186.99
Palmetto State Armory	$210.99	$210.99	$210.99

Since Sep 28, 2026.

About this part

The Stern Defense AR15 Mag Well Adapter for M&P .45ACP Mags is an AR-9 lower part from Stern Defense. It's sold by 6 stores (4 in stock), from $183.44 to $210.99. The lowest in-stock price in the last 30 days was $186.99 at Brownells.