The Colt M4 Enhanced Patrol Rifle Gen II PRO is a semi-automatic, direct gas impingement rifle chambered in 5.56mm NATO, designed as a premium, duty-grade platform with elite factory upgrades. This rifle incorporates a 16.1-inch chrome-lined, button-rifled barrel with a 1:7" right-hand twist rate and an A2 flash hider, built onto mil-spec forged 7075-T6 aluminum upper and lower receivers with a matte black hardcoat anodized finish. Operating on a reliable carbine-length gas system, the specialized PRO layout comes heavily configured right out of the box, featuring a full-length free-floating aluminum M-LOK handguard, a premium Radian Raptor ambidextrous charging handle, an ambidextrous safety selector, and a dual-sided ambidextrous magazine release. The high-performance layout is rounded out by an ergonomic Magpul MOE K2 pistol grip, a Magpul MOE SL adjustable collapsible stock, an enhanced trigger guard, and premium low-profile all-steel folding Magpul MBUS Pro iron sights. The rifle feeds from an included 30-round Magpul PMAG, delivering a standard deployment capacity of 30+1. Colt M4 Enhanced Patrol Rifle Gen II PRO 5.56mm 16.1" Bbl M-LOK Rail Semi-Auto MBUS PRO Sights K2 Grip Ambi Mag Release Black Rifle LE6920-EPRII-PRO