There is a slight amount of flex at the very end of the fore end. This flex may barely add any pressure againt the air tube. Since the barrel is free floated there should be no impact to accuracy. This stock supports my Harris bipod very nicely. The synthetic stock is an excellent stock for hunting. Bill"briansmith"I have read that guys who installed bipods and mounts feel like the front of the synthetic stock is too thin and flexible for this. Brian