kasaran

Odds are it could well be a Cyma kit as Matrix are their own ‘in-house’ brand , all the stuff is bought in then re-branded as Matrix . Totally agree with Lozart about Evike they are very shall we say slap dash with international customers . As they’ve pretty much got the west coast market in their pocket their attitude if there’s a problem is “and what ya gonna do about it from the other side of the world ?” 
Just so fecking annoying the way they’ve got so many thing you just can’t find anywhere else ! 🤬

Airsoft Tiger have the King Arms kit in stock, not sure how well it'll fit but https://airsoft.tiger111hk.com/p49448/A&K-SVD-Bolt-Action-Sniper-Real-wood-handguard-and-Stock/product_info.html

i doubt that would work, the Cyma is an aeg and the motor is in the grip, front grip need to clam-shell too for the battery.  i mean.... it would work with a lot of fettling, but i lack the skill or gear to do that. (if i had the ability, id have made a wooden stock for my m14 by now)