Please Help

[zipity_Bop]

how can i tell the difference between the level 7 and 10
i have no gas so cant gas it up im looking for a visual difference
Please help

[Dayspring]

turn the bolt over. If it's a thick piston in the middle, it's level 7. If it's a thin one that sticks out a bit past the bolt & won't sit flat, it's level 10.

[Arstron]

Also the powertube tip (brass peice the bolt slides over) on a level 7 is smooth and round and on a level 10 is smooth and round, but with a hex head.

[zipity_Bop]

thank alot mine has the hexagon head but when i bought the gun it said i nned new powertube oring where is taht located?

[Arstron]

Page 9 shows it best.

http://www.airgun.com/Images/automan.pdf