NBS 9MM Colt Magazine Magwell Adapter for AR-15

Name: NBS 9MM Colt Magazine Magwell Adapter for AR-15
Brand: NBS

NBS · Lower Parts

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Best price

$83.95at AR15Discounts

checked Oct 31, 2026

Buy at AR15Discounts

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Where to buy

Store	Price	Availability	Buy	Add to build
AR15Discounts Best price	$83.95checked Oct 31, 2026	Check store	Buy at AR15Discounts
Dirty Bird	$89.95checked Oct 31, 2026	Check store	Buy at Dirty Bird

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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Dashed line = out of stock. Tracking since Oct 28, 2026.

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Store	Latest	Lowest	Highest
AR15Discounts	$83.95	$59.95	$83.95
Dirty Bird	$89.95	$89.95	$89.95

Since Oct 28, 2026.

About this part

The NBS 9MM Colt Magazine Magwell Adapter for AR-15 is an AR-9 lower part from NBS. It's sold by 2 stores, from $83.95 to $89.95.

Specifications

Manufacturer: NBS
Platform: AR-9
Material: Aluminum

From the manufacturer

9mm AR-15 Mag Well Adaptor for Colt style magazines. This USA Made adapter allows for easy conversion from any standard .223/5.56 lower receiver to 9mm. The easy drop in design installs in minutes, with no gunsmithing or permanent modifications needed to the lower receiver. Key features are: Last round bolt hold open Steel feed ramps Installs from the bottom of the magwell with top and bottom locking Screws/li> No dissassembly of the bolt catch required Fits Colt SMG and Uzi Style Mags T-6061 black anodized aluminum body Steel feed ramp and ejector Net weight: 4.3 oz Installation: Remove screw and washer that is pre-installed next to the ejector Feed the magwell like a regular magazine into the mag well After locking into the lower, re-install the washer and screw Then use the provided Screws(2) and hex key to set the block into place from the bottom