Overview of the GBLS Steel GBB 1911A1 With Special Chrome BANG BANG Custom Engraving which you can order from their online store in Hong Kong. The GBLS DAS M1911A1 is a highly realistic airsoft pistol based on the A1 version of the 1911, constructed with high-quality CNC S45C steel and heat-treated for enhanced durability. It has a 7+1 round capacity, a realistic trigger pull of approximately 4 KGs, and a proprietary system specifically designed for green gas use.