Originally Posted by
Peter Laidler
Just refreshed my memory after looking at the bipod feet in relation to the lever and yours IS the right way. So starting again....... The big heavy spring in there adds the friction needed to prevent the lever operating on its own BUT there are also some serrated linear lines to cause friction between the little stud and the......... Anyway, these and the strength of the spring must prevent the bipod folding either way (forwards or rearwards) when you dump the gun down hard. I'd suggest a new SPRING, Bipod. It should have a free length of between 2.12" and 2.28" with 13.5 coils and a wire dia of .08" It's easy to mix the various springs up when you're faced with hundreds of them - and guns and we had a board with the spring all shown, labelled up.
Try a new spring, then a new lever (the lever is actually called a 'stop').
Nice to see a well looked after Bren.