|After over forty years in service, the M16 remains the standard issue rifle for the U.S. military. Popularized during the Vietnam era, the M16's gradual evolution has made it a very reliable and capable weapon. Alongside its little brother, the M4A1, the M16 remains a hugely popular rifle. The ECHO 1 M16A4 Full Size AEG Rifle is an exact copy of the Tokyo Marui M16A4. Package includes: Battery, charger, bb loader and manual. Dimensions: 1001mm length, 3900 gram weight. Velocity: 330-350fps. Maximum effective range: 120 feet. Magazine capacity: 300 rounds. Gear box: Version 2 (Metal Gear Box). Adjustable hop-up. Battery: Large type. Metal parts: Barrel assembly, magazine, trigger, sling mounts, charging handle, and body pins. Features: Fully upgradeable internals, adjustable rear sight, adjustable hop-up, retractable stock, full stock battery compartment, and counter-clockwise threaded outer barrel (14mm). Note: This is a replica, not a real gun! All Airsoft guns have a bright orange tip and/or clear plastic bodies as required by law. Orange tips may not be removed! Airsoft replicas are not made or authorized by makers of real guns unless specifically stated. Use of the name of a real gun and/or real gun maker is solely to assist in identification and does not imply any affiliation with or approval by any real gun maker.