The gun uses the sr15 marked carbine buffer and colt carbine spring and I've tried a white sprinco spring.
The bulb on the end of the gas tube is non existent. When I run my nail over it its like it was never there, just a smooth polish all the way to the end. I am going to replace the gas tube and see what happens. At 57$ on operation parts its definitely F-U expensive, but thats the pleasure of KAC ownership I guess...
I'm still interested if the .078" it measures at is considered too small for the gas system length?
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