Features: Faithful Replication of the Real Steel M16A1 Hard Kick Recoil Impulse Classic M16A1 Furniture Approx. 400FPS 20rd High Capacity Magazine Specifications: Length - 950mm Weight - 2812g Magazine Capacity - 20 Rounds Power Source - Green Gas / Propane Powered Blowback - YES Shooting Modes - Semi, Full Auto Hop-up - Adjustable. FPS - Approx. 400FPS The M16 has long be the symbol of the United States and her armed forces for much of the modern era. Starting it production during the Vietnam War, the M16 and its different variants have seen action in all theaters of conflict that involved the U.S. The M16A1 was brought into service with the U.S. military in 1964 and in 5 years time, the M16A1 became the standard issued weapon replacing the M14. This GBBR from airsoft manufacturer DNA pays faithful homage to the classic. Each finish is handled with care down to the usage of the short 20rd magazines seen used on the real steel version. The gun also boasts superb recoil impulse and a cycling rate that is close to the real thing. Internally the gun has some compatibility with VFC M4s such as some parts of the trigger group and bolt carrier group. Includes: x1 DNA M16A1 MOD613 GBBR x1 20Rnd Magazine x1 ManualThis product is only compatible with gas designed specifically for Airsoft guns. Do not use lighter fluid or butane gas, as that will cause permanent damage.