SLONG Airsoft, known for their airsoft accessories and upgrades are now releasing complete airsoft guns. In this video review, Reapers Airsoft goes over the SLONG M4 SN S-AEG With Modular Handguard System. If you want one of these, you can find one at Begadi... "Hi, again there is an M4 model in the middle price segment. The SLONG M4 SN in the 10.5-inch version."