What caliber is the Matched Upper/Lower Receiver Set?

The WMD NiB-X Matched Upper/Lower Receiver Set is marked for 5.56 NATO.

What type of firearm does the Matched Upper/Lower Receiver Set fit?

It is an AR-15 receiver pair sold as a pre-fitted matched set.

Where can I buy the WMD NiB-X Matched Upper/Lower Receiver Set?

Compare current vendor offers on this page.

WMD NiB-X Matched AR-15 Upper/Lower Forged Set 5.56 NATO

Name: WMD NiB-X Matched AR-15 Upper/Lower Forged Set 5.56 NATO
SKU: UCF4Fczl7
Availability: InStock

The WMD NiB-X Matched AR-15 Upper/Lower Forged Set 5.56 NATO is a 5.56 NATO ar style rifles. It is available from 1 vendor at $249.11.

From $249.11

Product Information

Name: WMD NiB-X Matched AR-15 Upper/Lower Forged Set 5.56 NATO

Category: AR Style Rifles

Caliber: 5.56 NATO

UPC: 855899003997

SKU: UCF4Fczl7

Description

The WMD NiB-X Matched Upper/Lower Receiver Forged Set is an AR-15 receiver pair machined from forged 7075-T6 aluminum and finished in WMD's NiB-X nickel-boron coating. The set is marked multi-caliber and is chambered for 5.56 NATO. The matched upper and lower are sold together as a pre-fitted pair.