A familiar AEG for veteran airsoft players gets reviewed by Timerzanov Airsoft, the  DBOYS MK12 SPR Mod.1 AEG... "Hi all ! This week I offer you the review of a DMR based on the AR-15. This is the MK12 SPR Mod.1 from [Dboys/Double Bell]. Indeed, it is the same replica offered by both manufacturers. This full metal replica features an original quick spring change, full metal manufacturing and a very attractive price.