KO on extreme?

[wacki]

http://products.berettausa.com/frame_tabellaprodotti_2002.asp?sgmt=5&Model=A391 Xtrema2

what is it and why does it cost $400?

 

[publius]

Not positive, but I think it's that huge recoil pad.

 

[duckcallinfool]

KO is the kick off system. The recoil pad has two gas shock absorbers built into it. Don't know if it is worth $400 but it is bound to help your shoulder when shooting heavy loads.

http://www.berettausa.com/product/spotlight/spotlight_hunting_shotgun_xtrema2.cfm