08-26-2018, 11:31 PM
Cajuntransplant Wrote:I might try to get a heavier buffer to try out. I'm running a carbine length buffer and tube with standard carbine weight and the JP flat spring. My first bolt broke when I was using the rifle length tube and standard weight buffer with JP spring though too. So maybe upping to a heavier buffer will help. Couldn't hurt any. Is there a way to tell if it is unlocking early at all? I might just save up a little to replace the bolt head with a nickel boron one from Maxim and get a heavier buffer and tune my gas block some. See if that helps it out. I know there's still a lot of gas coming back in the chamber area cause the brass and bolt carrier group is absolutely filthy even after a hundred or so rounds from a match. You can scoop the carbon out of the bolt carrier group at the end of the day.
Yea it's unlocking to early that's why it's so dirty.
Ok go to KAK website they sell the tungsten buffer weights two should bump your buffer weight up to H2 level and that will slow the unlock time down and let pressure drop to a safe level.
I would see if you can tune the gas down some more first before spending the 20 bucks for the weights and shipping.
I run lowmass parts with tuned gas from adjustable gas blocks and can put alot more rounds throw my set ups without coming close to being as dirty as what your' s is getting.
The can could be causing some of the dirty action as well, don't know for sure as I don't own any cans.
This is what I would do.
1. Try to turn the gas down more, if it still isn't working then
2 Add tungsten weights and bump the buffer weight up to h2 or h3 level
3. Maybe take the load down bout .03 grains and see what it does, if the first two things don't fix the issue.