The American Defense ADM4 in .223 Rem/5.56 NATO (brand part no. ADM4R5BLK14M1MLOK) is a semi-automatic AR-15 built on a billet aluminum, fully ambidextrous upper and lower receiver set, made to the same specification as ADM’s standard UIC Mod 2 but with a slick-sided magazine well. American Defense Mfg builds this ADM4 around a 14.5-inch pinned barrel reaching a legal 16 inches overall, finished in black. Among AR-platform rifles in the AR rifles category, the ADM4 favors shooters who want UIC Mod 2-level quality in a compact pinned-barrel configuration.

Key Specifications

• Chambered in .223 Rem/5.56 NATO.
• Operates as a semi-automatic AR-15.
• Built on a billet aluminum upper and lower receiver set.
• The receiver set is fully ambidextrous.
• Features a slick-sided magazine well.
• Built to the same specification as ADM’s UIC Mod 2.
• Features a pinned 14.5-inch barrel, reaching a legal 16 inches overall.
• Feeds from a magazine with a 30-round capacity.
• Finished in black.

Frequently Asked Questions

Why is the barrel pinned? The 14.5-inch barrel carries a pinned device to reach the legal 16-inch minimum.

How does the ADM4 differ from the UIC Mod 2? It’s built to the same specification but with a slick-sided magazine well instead of ADM’s standard well.

Buy the American Defense ADM4 5.56

As soon as it’s ready to ship, UIC Mod 2-level quality in a compact pinned-barrel configuration is exactly what the ADM4 delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.