G&P MWS Daniel Defense M4A1 12.5" Front Set for Marui M4A1 MWS GBB Rifle Tactical-Gear-Type_Tactical Holster 27+1 Rds Loading Capacity Gas

27+1 Rds Loading Capacity Gas Magazine

why use a stock gas block when you could use something like this

Depending on the barrel length

The PTS Enhanced Polymer Foregrip 2

G&P MWS Daniel Defense M4A1 12.5" Front Set for Marui M4A1 MWS GBB Rifle Tactical-Gear-Type_Tactical Holster 27+1 Rds Loading Capacity GasG&P MWS Daniel Defense M4A1 12. 5" Front Set for Marui M4A1 MWS GBB Rifle Licensed by Madbull DD M4A1 12. 5 RAS II (Black) (COP115BK) Marui MWS Outer Barrel Adaptor (MWS013) WA M4A1 Steel Outer Barrel (WP19) M4 Flashider (14mm Clockwise) (GP209) M4 Gas Tube (GP167) Angle Gas Block (OTH023) Suitable For Tokyo MArui M4A1 MWS Series Gas Blow Back GBB Rifle