Cybergun XM16E1 COLT M603 GBB Airsoft Rifle (CGS System)

Price: $440.54 — In stock.

About Real XM16E1 COLT M603 The XM16E1, or Colt Model 603, was the U.S. Army's specific variant of the early AR-15, serving as the direct predecessor to the M16A1. Its defining feature was the addition of a forward assist mechanism on the upper receiver, a requirement from the Army that distinguished it from the simpler Air Force model. Rushed into service with troops in Vietnam from 1965, the rifle gained notoriety for severe extraction failures and reliability issues in the field, largely due to fouling from its ammunition and the lack of a chrome-lined chamber. These combat failures forced critical design changes, including that chrome plating. The improved design was formally standardized as the M16A1 in 1967, making the XM16E1 the problematic yet essential bridge between the AR-15 and the iconic M16 family. About Cybergun XM16E1 COLT M603 GBB Airsoft Rifle (CGS System) CYMA has released this classic rifle under Cybergun?s license. Widely used by the U.S. military during the Vietnam War, it serves as a representative firearm of that era and is considered an iconic classic. Recognizing its historical uniqueness, CYMA has reproduced this replica of the XM16E1 COLT M603. In real-steel history, this firearm has been in existence for over 60 years (as of 2026) and stands as a highly representative classic of the U.S. military, marking an important milestone in firearms history. This Cybergun XM16E1 COLT M603 GBB Airsoft Rifle (CGS System) features a metal lower receiver engraved with highly realistic "COLT AR-15" markings, a metal upper receiver with a built-in carry handle and integrated rear sight, a 485mm metal outer barrel, and a 45mm three-prong metal muzzle brake. It is equipped with a 325mm polymer triangle handguard with a metal handguard cap, a polymer pistol grip, and a 250mm polymer fixed stock with a rubber pad. The rifle comes with a metal 20-round gas magazine and includes detailed metal components such as the trigger, trigger guard, charging handle, bo