Because I’m using a GAMO Wildcat Whisper .22 cal Air Rifle (break barrel) and the end of the barrel nearest the trigger gradually increases in circumference as it travels towards the opposite end of the barrel, I have to utilize the body’s clamp attachment. Unfortunately, the clamp bolts they provide with the attachment (10-32 x 1.25) are not long enough to use with my rifle. Then again, they did specifically state that it let’s designed and sold to fit standard sized barrels and my rifles barrel is above standard size.This is just a PSA to anybody browsing Bipods for GAMO Air Rifles. This product will not work on your GAMO Wildcat Whisper without additional DIY steps or additional (longer) clamp bolts.I still recommend this product over all the other Bipods I’ve seen for Air Rifles as every other bipod I viewed had reviews stating they had issues with the bipod “walking/climbing the barrel.”