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Hmmm.. that doesn't look like a normal Delta ring. Must be CYMAs own take on it.
That's what I thought. I don't know why G&G didn't go with a universal one. Sorry about the picture quality. I can take some more if it helps.
It's the 10.5" outer barrel with the 4" extension you're referring to right?
Okay, I've got the part of the delta ring that screws off now. I used the handguard as leverage. The barrel now detaches.
As for the gas block, I knocked out the two pins but it still won't budge. How do I remove the grubscrew you referred to, @Immortal? Is there a way to do it without specific tools?
View attachment 30347
I can't guarantee there is a grubscrew as it's not an A-sight gas block however if there is one it should be located where there would normally be a sling loop attachment on the underside of the block (yours is missing the link that would also normally be there). The bit I'm referring to is opposite the bayonet mount, the bit opposite with the rounded corners and a hole on each half. Inside should be the screw if it's there. Please note; there may be another pin in the sling loop area mentioned and you need to remove it to access the grub (if present).
I'm assuming the gas block is removable and not fixed as someone else mentioned!![]()
You will need an allen/hex key. I don't know what size or if it's metric or imperial.
One trick if you really want to get it out with the wrong tool is to find an even smaller key or a precision screw driver that fits in the opening and super glue it into the grub hole. You can let it set and turn it out. Bit extreme though but it does work.
I'd buy a key set!
I didn't even know they made Allen keys that small. It's no bigger than 2mm wide.
Cool, you found one. I think you'll need to invest in a set of keys if you don't know the size you need.
They're handy to have and these will do for most jobs in a lifetime:
http://www.ebay.co.uk/itm/30-Piece-Hex-Key-Set-Metric-And-Imperial-With-Case-Blue-Spot-15320-Allen/362123304190?epid=1904559068&hash=item54503b1cfe:g:18UAAOSwIylZ1y0l
Ordered this little set for a quid as I'm heading into town tomrorrow anyway and can just pick it up.
It has 1.5mm and 2mm Allen keys so hopefully I can get it out using this cheapo one.
https://www.wilko.com/all-hand-tools/wilko-functional-metric-allen-key-8piece/invt/0209131