Weapon accessories Adapter ARCA Swiss to WEAVER (picatinny rail) arcawever1 Very attractive adapter from tripod with ARCA Swiss system to WEAVER clamping system (picatinny). You can quickly and easily mount your rifle on a tripod to get the stability you need for support.Attaching a rifle to a tripod by adapter ARCA to WEAVER (picatinny rail) is an attractive, fast and proven method of fixing the rifle in non-standard or... View