Nicky blue eyes Posted September 20, 2017 Share Posted September 20, 2017 I got this pistol and it was firing at 380 fps. Looked on good old youtube and found 2 different methods of lowering the fps. How ever neither was in english. The method I used was to put an o ring in the gas chamber to reduce the amount of co2 going in. The slide only slightly goes back now. Not really a problem because it dosen't rely on the slide to operate the system how ever it now seems to have lost some distance. Is this normal? I thought it might be leaking but I couldn't hear any hissing. This is my first gbb pistol so I'm not sure what i should be looking for. Link to comment Share on other sites More sharing options...
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