The Worker Esper Rear Prime Conversion Kit allows you to transform your Model B Esper to a Model A. The Esper Model B comes stock pump grip. The Prime Conversion Kit allows you to have a rear prime like the Model A. Esper Blaster Model B required. The Esper Model B to Model A kit includes 8 pieces to transform your Esper Blaster.
FEATURES: • Compatible with Worker Esper Model B Blaster • Blaster not included
