Serendipity Red Dot 2 Mags - Base On Tokyo Marui HI-CAPA 4.3 Custom (Dual Stainless) - Package Included: -Tokyo Marui HI-CAPA 4.3 Custom (Dual Stainless) - 5KU Limcat Phantera Knife Aluminum Slide With Compensator Set For Marui Hi-Capa - Shooters Design Hot Shot Style Magwell (Silver) For Marui Hi-Capa - Shooters Design Metal Magazine Base Type B For Marui Hi Capa 5.1 Government (SV) - Custom Steel Recoil Spring Guide - Custom Enhanced Recoil & Hammer Spring For Marui Hi-Capa 5.1 ( 150% ) - Velocity : Approx. 270-290 FPS ( 0.2g BBs With Top Gas ) - Magazine Capacity: 31+1 Rounds (5.1 Magazine With Mag Base) - Recommended " Top Gas / Red Gas "