First of all, snipers are people, they don't need repairing, they need booze and hot wings.
Second of all, that would be an AGM TM VSR10 clone, and since it is a clone, parts will be compatible, and it is highly possible you will need to do some modification for certain parts to fit.
Third of all,
PDI is the
best for VSR10 upgrades, and you can get the parts for much cheaper
here since the CAD is worth more than the JPY, and PDI also offers to mark down the price on the manifest so you won't have to pay enormous duties and taxes... but you still need to pay the full price