FCW MP5 M-Lok Handguard Set (GBB / AEG) Type A (Slim)
 
Extra Buffer Made By FCW In order to Fit With MP5 Old Generation AEG
Fit VFC GBB MP5 / HK53 / TM MP5 AEG Next Gen without using ABS Buffer 
Fit To Most Of Marui & Marui Cloned MP5 AEG, Like Classic Army, CYMA, Jinggong
Certain Modification Must Be Needed For Various Brand