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1/29/2009 6:37:08 AM EDT
I want to build a cheap upper for my ceiner kit. I want to use a 223 barrel, do I have to use a gas block or can I just leave it off since it is a blowback?  Will the hole in the barrel being left open be an issue?

I plan on using a free float quad rail.

Thanks
1/29/2009 6:42:18 AM EDT
[#1]
Just use a plug in the gas block.

Contact Spikes Tactical... they supplies their .22 conversion kits with a gas block plug you may be able to purchase one from them.

You may also get more responses in the Pistol and Rimfire AR section.
1/29/2009 6:52:55 AM EDT
[#2]
The gas hole in the barrel won't be an issue.
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