GHK M4A1 RIS V2 - 4UAD Grading System Challenge

◤We all have heard great things about the GHK M4A1, but how good is it? We believe it is still mysterious, the most of performance information we could find were somewhat biased, and some people absolutely love this gun while some others just don’t. Well, now 4UAD got it all figured out, the GHK M4A1 Grading System Challenge will tell you how exactly this gun performs. Don’t forget to let us know which gun you would like us to Challenge! whatever that is mentioned more than 10 times in the comments, we will do the challenge! (if we can get the gun XD) For each of the test, here are the short cuts! The Hop Up Test: 02:45 The Range Test: 04:51 The Grouping Test: 07:10 The Gas Efficiency Test: 09:07 The Rate of Fire Test: 11:44 The Consistency Test: 12:57 The Final Score: 14:35 Thanks again for all the support and love! Please do excuse the slow update, we will try our best to get our stuff uploaded! Special thanks: