XCU-R is the new lubricant for kinematics of weapons, and it is the result of technical collaboration between TCP andvarious arms manufacturers.In this new formulation XCU-R has been made capable of reaching amazing levels of resistance:HIGH WORKING TEMPERATURESOPERATING PRESSURES present in the area of the barrel>slide-locking-system, in the bolt guides and in the gas system of the semi-automatic rifles, *does not interfere with gas systems!FRICTIONS produced by kinematic at HIGH SPEED and HIGH PRESSURES even in the presence of residues from shooting activity and also in the presence of desert sand or sea sandHIGH FREQUENCY VIBRATIONSXCU-R has been tested in order to lubricate the kinematics of the weapons in all possible conditions of use, both interms of the stress deriving from intense use of the weapon and for use in all coincevable climatics conditions,even the most extreme, even the rarest in terms of practicality and probability of use of a weapon.XCU-R as soon as it has been installed on the mechanics of the weapons transforms their behavior as well as ifbearings were installed!XCU-R has been designed to work identically on all types of mechanical coupling;steel, aluminum, ergal, tecnopolymers and also titanium and carbon fibersThe concept we guarantee is that a weapon not lubricated with XCU-R has a completely different mechanicalbehavior than itself lubricated with XCU-R!And that's what our customers confirm!