The Sig Sauer M400 SDI XSeries 5.56 NATO 16" 1:7" Barrel Black Rifle is a high-performance firearm designed for versatility and reliability. This rifle features a 16-inch barrel with a 1:7 twist rate, optimized for stabilizing a wide range of bullet weights. It comes equipped with a Romeo5 Gen II Red Dot Sight for quick target acquisition and a Foxtrot Rail Mounted Light for enhanced visibility in low-light conditions. The rifle includes a 30-round magazine, ensuring you have ample ammunition for any situation. The black anodized finish provides a sleek, durable exterior, making this rifle a top choice for both tactical and recreational shooting. Sig Sauer M400 SDI XSeries 5.56 NATO 16" 1:7" Bbl Black Rifle w/ Romeo5 Gen II Red Dot Sight, Foxtrot Rail Mtd Light & (1) 30rd Mag RM400-SDI-16B-R5FX