Billy's GB Reviews on the SRC Mamba DMR Gel Blaster which he says is a powerful one, showing his personal setup and modifications. External additions include a Bushnell site, a Wolverine hop-up and suppressor unit, an AHG 138 underbarrel shotgun attachment, and a Python foregrip. The blaster uses a large 6,000 mAh 7.4-volt Titan battery housed in the crane stock, accepts standard nylon Gen 8 magazines, and features flip-up iron sights.

Regarding its function, the charging handle on this model only opens the dust cover, and the magazine prime is activated via the bolt release. The Mamba utilizes a V2-style gearbox and a large internal barrel, with its performance estimated to be between 330 and 350 FPS for the nylon version. To demonstrate its capabilities, he shows the rate of fire and conducts a damage test, comparing the Mamba's penetration against that of a Wilson Combat gel pistol by Army Armament.