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PTS Masada GBBR Firing issues, Gas escaping after a few shots


TMC

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Hello!

I am the proud owner of a (used) PTS Masada GBBR.

 

Unfortunately, it's not working the way I would have hoped. From all the youtube videos, it seems to be quite capable of firing off a full mag in semi auto with fairly rapid shots, but for me after about 10 it acts up a bit.

 

What'll happen is I'll hear a hiss followed by the gun actually firing a second later, like some kind of strange delayed reaction. Then, it'll just slowly eject the gas out of the gun unless I pull back the charging handle.

 

I have stripped down the entire gun, and cleaned off every bit of it and regreased it to no avail. I've also put silicone on the feed lips for the gas system on both the magazine and the bolt carrier group.

 

Could it be the valve at the back of the magazine?

A little fed up, as when this thing shoots it is wonderful.

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