I own a S&T/D-boys clone of the Marushin Kar98k shell eject design and installed the G&G bolt in the S&T gun. I noticed it required alot of force to close the bolt with a shell in the chamber
try orienting the rim of the cartridge under the claw extractor and close the action, it should require no force to close now.
the extractor claw spring is too strong meaning you have to force it over the rim when the action closes
I resolved the issue for my gun by polishing the sharp edges of the claw to reduce shell rim wear/damage
also reduce the spring tension by cutting one ring off from the end of the extractor spring, cutting too much will cause extraction issues.
I did this to one customers gun when he ordered the G&G version and he has yet to come back to the store so I think it resolved the issue for him too.
Hope this helps
Last edited by localfreerider; July 25th, 2018 at 10:10..
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