The APF M16A1 5.56 NATO semi-auto rifle (APF part no. RI356) is a faithful retro reproduction of the classic M16A1 configuration, built as a semi-auto-only rifle for collectors and range shooters who want the original rifle-length profile. A full 20-inch chrome-lined barrel, forged 7075-T6 aluminum upper and lower receivers, and an A2 fixed stock recreate the look and feel of the original service rifle using modern, mil-spec-quality manufacturing.

Key Specifications

• Chambered in 5.56x45mm NATO, the standard AR-15-pattern cartridge with wide ammunition availability.
• The 20-inch chrome-lined 4150 CMV barrel uses a 1:7 twist, matched to a wide range of 5.56 bullet weights.
• Upper and lower receivers are forged 7075-T6 aluminum, matching original mil-spec construction.
• Runs an M16-pattern bolt carrier group with a rifle-length A1 pinned gas block.
• Fitted with the original-style A2 fixed stock for a classic rifle-length profile.
• The A1 three-prong flash hider completes the period-correct muzzle profile.
• Feeds from a 30-round GI aluminum magazine, with one magazine included.

Frequently Asked Questions

Is this rifle select-fire like the original military M16A1? No, this APF reproduction is semi-auto only; it is not select-fire and has no machine-gun capability.

What sights does it use? It ships with A1-pattern iron sights, matching the original rifle’s sighting system.

How much does this rifle weigh? It weighs approximately 7 pounds with an overall length of about 39.5 inches.

Buy the APF M16A1 5.56 NATO Rifle

Few configurations carry as much history as the original M16A1, and this APF reproduction lets shooters own that profile as a fully modern, semi-auto-only rifle. Backed by APF and part of our semi-auto rifles lineup, it is a great addition for collectors and retro AR builders. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.