This is Bandai107724 MSZ-006C1 ZETA PLUS C1

The MSZ-006C1 Ζ Plus C1 is a variant of the MSZ-006A1 Zeta Plus A1 designed for space combat. The unit is featured in the photo-novel Gundam Sentinel.

Inspired by the success of the MSZ-006A1 Zeta Plus A1, The AEUG further develops and redesigns the MSZ-006A1 in the form of the C1 type. Designed primarily to fly up to extreme altitudes into space, The MSZ-006C1 Ζeta Plus C1 was equipped with updated cooling systems, Ram hybrid jet/rocket engines that were capable of adapting to any type of environment, and was fitted with a new backpack component equipped with four additional thrusters. However, this unit retained the wing binders of the A1 type, discarding the flying armor concept of the prototype Zeta Gundam, allowing this version of the Zeta Plus to perform atmospheric entry with precise calibration.

The MSZ-006C1 Ζ Plus C1's offensive capabilities were increased with the addition of a powerful Beam smart gun, which was integrated into a flight sub unit that contained a small generator and energy CAP system, With the option of equipping a coaxial disc radome for long-range attacks. Hand-carried in mobile suit form, The Beam smart gun served as the unit's nose when assuming its Waverider form. Propellant tanks could also be attached to the wing binders, giving the Zeta Plus the ability to descend to the lunar surface and then launch back into space.