Fitting cyma ak74 tactical foregrip

[Talltom]

Ok guys ive got a cyma ak74 and ive just recieved a ak74 tactical foregrip made by cyma now trying to fit it to the ak seems to be a lot more trouble than i originally thought can anyone explain when the top half is the same width going all the way compared to the original which gets smaller the closer to the end of the barrel and why there are ribs in the lower half that need to be removed for it to fit of the for sling this is now getting me thinjing they have sent a non cyma ak74 foregrip

Cheers

Tom