The ATI Mil-Sport P3P in 5.56 NATO (MPN ATIG15MS556MLP3P) is a semi-automatic AR-15 pattern rifle built around a 16-inch phosphate-finished barrel with a 1:8 twist. American Tactical/ATI fits this rifle with a 10-inch M-LOK forend, a Nano Composite fire control group parts kit, and an Alpha adjustable stock. The rifle feeds from a 30-round magazine. Among AR-platform rifles in the AR rifles category, the Mil-Sport P3P favors shooters who want a compact-handguard 5.56 AR-15 at an accessible price.

Key Specifications

• Chambered in 5.56 NATO.
• Rifled at a 1:8 twist rate.
• Features a 16-inch barrel finished in phosphate.
• Includes a 10-inch M-LOK forend.
• Fitted with an Alpha adjustable stock.
• Feeds from a 30-round magazine.
• Weighs approximately 8.3 pounds.

Frequently Asked Questions

What handguard does this rifle use? A 10-inch M-LOK forend.

What is the twist rate? 1:8, suited to a broad range of 5.56/.223 bullet weights.

Buy the ATI Mil-Sport P3P 5.56 NATO

A compact-handguard 5.56 AR-15 at an accessible price is exactly what the Mil-Sport P3P delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.