The Sig Sauer MCX in 5.56 NATO (MPN WRMCX-556N-16B-LT) is a semi-automatic AR-pattern rifle finished in black, pairing a 16-inch barrel with a folding stock for compact storage. Sig Sauer builds this rifle on the proven MCX platform, feeding from a 30-round magazine. Among AR-platform rifles in the AR rifles category, the MCX favors shooters who want a compact, folding-stock 5.56 platform.

Key Specifications

• Chambered in 5.56 NATO.
• Features a 16-inch barrel.
• Fitted with a folding stock for compact storage.
• Feeds from a 30-round magazine.
• Finished in black.

Frequently Asked Questions

Does the stock fold? Yes, for compact storage and transport.

What is the magazine capacity? 30 rounds.

Buy the Sig Sauer MCX 5.56mm, Folding Stock

A compact, folding-stock 5.56 platform is exactly what the MCX delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.