Specs:

• Barrel Length: 16.1"
• Length of Pull: 10.25"-13.50"
• Twist Rate: 1:8"
• Capacity: 30

Features:

• 11" aluminum handguard is free-floated for accuracy and features Magpul® M-LOK® accessory attachment slots along the 3:00, 6:00 and 9:00 positions with additional slots on the angled faces near the muzzle.
• Flat top upper receiver features a Picatinny rail for easy attachment of magnified optic, red dot or open sights.
• Made from 7075-T6 hard-coat anodized aluminum forgings, shot-peened and proof-tested 9310 steel bolt, and 8620 steel bolt carrier.
•  The inside diameter of the carrier and gas key are chrome plated and the key is staked for longevity (excludes model 8516).
• Single-stage trigger provides durable and reliable fire control. The enlarged trigger guard is designed to allow gloved shooting in cold weather (excludes AR-lower receivers).
• Six-position, telescoping, M4-style buttstock and Mil-Spec buffer tube allow the rifle to be properly sized for different shooters or varying levels of outerwear.