Tapp Airsoft KMP9 GBB to HPA/M4 Mag Adapter with Upgraded Flared Competition Magwell for faster mag changes. Includes one PTS EPM Midcap (Tapp recommends this midcap specifically because of the stronger spring for better feeding). Spent over $175 on this combo with tax and shipping costs. NOTE: KMP9 pictured is NOT included and is there for reference purposes only.