I bought into the Javelin bipod system and also got the Sentinel tripod and now own neither. Not trying to bad mouth the brand or product in any way, but I felt like pursuit of space age materials and precision machining resulted in an overall product that lacked the basic functionality and durability I was looking for. The legs on both the bipod and the tripod did not have enough tension in the joints to stay deployed on their own, so moving them required two hands, and it was just frustrating and inconvenient when sitting or trying to work quickly. I also had problems with the telescoping connections on the legs, I had to re-glue the insert on the Javelin, and damaged the red bushing on the Sentinel under normal use. The tilt adjustment was also not as positive as I was looking for on the Javelin. The price for items themselves plus the adapters just added up, and I felt like in each instance there were better/lighter/smoother products already on the market. Weight is weight, whether you are carrying it on the rifle or in your pack, and I would rather have the bipod on the rifle ready to go.
Looks like they are working on their customer service by having reps in North America which is awesome, but at the time they did not and my emails went unanswered or I would get sporadic responses.
As far as alternatives, I have rotated back to Harris notch legged non-swivel bipods on in the field guns. They are about 10oz, indestructible, and you can buy four for the price of one Javelin. They are not as feature rich, but offer the straight thrash proof functionality I personally prefer with the way I abuse things.
