VFC Has their own Specification for their Gas Blowback Rifle. There has a number of players who doesn't know and Now SIXmm has chosen those out for you and easier to buy.
Great product exact replica, perfect for those finishing touches, good solid locking on wobble movement or sound when attached, brilliant would & will buy again
The SOTAC L3 NGAL is really well made and is probably 1 of the best of its type on the market today, I have nothing bad to say about it, I order from sixmm often & have for a couple of years now & will continue to use them hopefully for many years to come