The short version doesn’t offer many useful mounting option - Mesa Tactical Truckee Forend

This is advertised as the “easy” version. You will have to remove the 2 shell extension every time, and if you have an H20 version, you will scratch the shell tube up as you fiddle around trying to get this seated, as the pistons and the barrel and the two plastic pieces and the stock all have to be aligned just so. The top is open, and you can see the cylinders so the pistons are exposed to the elements. You can’t mount anything nearest the muzzle as there is not enough clearance for the m-lock screws underneath. The finish is slick so you will likely need some m-lock inserts. You may better off with a CDM Gear ROC-12S Low Profile Light Mount with Built-In Sling Swivel Dock. I’m still looking for the IWC picatinny rail…but the owner died on Feb so not sure if these will ever go back in production. Sometimes it’s just hard to improve on a great original design.