The Colt M45A1 Marine is a full-size 1911-style pistol chambered in .45 ACP and built around the same configuration selected by the United States Marine Corps for close-quarters battle use. Its stainless steel receiver and slide feature a durable Brown Decobond finish, while the 5-inch National Match barrel supports consistent accuracy. Novak 3-dot night sights provide a clear aiming reference in low-light conditions, and the MIL-STD 1913 accessory rail accepts compatible lights and lasers. An extended ambidextrous manual safety, enhanced hammer, flat serrated mainspring housing with lanyard loop, and checkered G10 grips complete the service-oriented design.

Key features

• Full-size .45 ACP 1911 platform with a crisp single-action trigger for precise shooting
• Brown Decobond-coated stainless steel receiver and slide provide a distinctive, durable finish
• 5-inch National Match barrel supports dependable accuracy
• Novak 3-dot night sights improve target acquisition in low-light conditions
• MIL-STD 1913 accessory rail accommodates compatible lights and lasers
• Extended ambidextrous manual safety supports right- and left-handed operation

The Colt M45A1 Marine combines proven 1911 handling with duty-focused features for range, defensive, and service-oriented use.