I have a SAKO TRG-22 and recently I have problems with the bipod not locking into the slot in the chasis. I would put in the SAKO factory bipod, hear the click and it would seem like it's locked in. But when I exert just a little bit of pressure on the bipod legs, the bipod would come off without even pressing on the release thing at the bottom of the bipod. Anyone know what I am talking about?