NiB-X Upper Receiver, Black

Best price

$98.99at Brownells

checked Sep 30, 2026

Buy at Brownells

Where to buy

Store	Price	Availability	Buy	Add to build
Brownells	$98.99checked Sep 30, 2026	Check store	Buy at Brownells

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

About this part

The NiB-X Upper Receiver, Black is an AR-15 upper receiver from WMD Guns. One store lists it, Brownells at $98.99.

Specifications

Manufacturer: WMD Guns
Color: Black
Platform: AR-15

From the manufacturer

Ultra-Hard, Smooth-As-Glass Finish For Maximum Durability & Smooth Cycling

Stripped receiver has WMD’s NiB-X nickel boron coating inside and out to provide an exceptionally tough, ultra-smooth surface finish for outstanding wear resistance and lubricity. A ceramic topcoat is applied for color on the exterior only, leaving the nickel boron exposed inside to keep friction with the bolt carrier to the absolute minimum. Works great with standard carriers, too, but even smoother with nickel boron coated bolt carriers, including WMD’s NiB-X coated carrier, available separately. M4 feed ramps ensure reliable feeding.