A look at the BRSS model with the MP5K body in this video review by Arms Magazine of the BOLT MP5KSS PEAKER... "When talking about the blowback model of the MP5, many people think of Marui's next generation, but on the other hand, the MP5K was surprisingly difficult to find in the lineup, and there was no model that could enjoy electric blowback. Meanwhile, the MP5K electric blowback model is now available from BOLT Airsoft!