This is bandai105569 MSZ-006A1 ZETA Plus
The MSZ-006A1 Ζeta Plus A1 (Z Plus A1) is a part of the MSZ-006+ Zeta Plus line of mass-production mobile suits. The A1 type was the first mass-produced successor to the MSZ-006 Zeta Gundam. It was featured in the photo-novel Gundam Sentinel. The unit is piloted by Amuro Ray.