Fucile Specna Arms Sa-B02 Carabine Replica Half TanSA B02 carbine replica Half Tan The replica was fitted very well in a way that it was previously observable only in the G&P or Classic Army class replicas. It was also perfectly balanced. This ensures a perfect maneuverability of the replica while as its weight is almost not felt when you place the replica on the shoulder. The replica uses a quick main spring exchange system, the so called Enter & Convert. This allows for a quick and fluent adaptation