The 180025 (BLUE) COLT M4 SIERRA AEG is a precision-engineered airsoft rifle designed for serious enthusiasts. Featuring a 6mm caliber and powered by an electric AEG system, it delivers consistent 1 Joule energy output for reliable performance. With a 90-round magazine capacity, this model offers extended playtime and quick reloads. Its robust build and authentic design provide both durability and realistic handling, making it ideal for tactical training and competitive airsoft games.