Customize 1 weapon with an external attachment at every attachment point - Tom Clancy's Ghost Recon: Future Soldier
Customize all the internal parts of one weapon - Tom Clancy's Ghost Recon: Future Soldier
Add an attachment to any gun - Tom Clancy's Ghost Recon: Future Soldier
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69/2,67825/1,0002/36
89/3,33175/1,2507/60