Let's refresh what we know about the WE Airsoft 4168 Gas Blowback Rifle in this video presentation by Airsoft Entrepot. Released a few years back, this rifle is based on the Heckler & Koch HK416 weapon design. Just turn on the language captions as this is done in French... "The 'WE 4168' GBBR is a gas replica of the H&K HK416, very realistic in its operation which imitates very ready the operation of a real firearm."