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Posted: 11/20/2014 9:54:31 PM EDT
If I get my 16 inch 17 barrel chopped to 14 inches will the factory gas port insert still work or will I need a different size?

Curious to see who has done this and what if any changes were needed.

Thanks,
Jeff
Link Posted: 11/21/2014 5:14:20 PM EDT
[#1]
At the bottom of this page, there is an brief application chart for gas inserts: http://handldefense.com/product/scar-gas-control-jet/.  Since 14" isn't a normal SCAR H barrel length, maybe you would have to go with a selection from either Handl or here: http://hi-desertdog.com/barrel-group.html and experiment until you get reliable cycling and extraction.
Link Posted: 11/21/2014 11:17:35 PM EDT
[#2]
There is a guy on FNforum.net that posted about this. He has a 13" barrel and tested several gas port sizes, he found a 1.4mm ran best suppressed and unsuppressed. I would say 1.4mm would be G2G on a 14" barrel given that a 13" runs well with it.

I have a 17S and will be trying different gas port sizes soon to reduce gas blowback with my can.
Link Posted: 12/2/2014 9:57:05 PM EDT
[#3]
I got my chopped barrel back from ADCO and it still works well with the factory gas port cut from 16 to 14 inches. I ran some Hornady light through it and you can feel the really slow cycle but it still cycled so I'd imagine the regular full power stuff will be fine.
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