I’m assuming you mean craft the item and it will already have your attachment/s? Take a look at how the assault rifle is setup. It has several attachments. Each attachment requires a separate “weap” BP. IE: WeapNewRifle, WeapNewRifle_Scoped, WeapNewRifle_silencer etc. Each “weap” has the attachment mesh in the components section of the BP. You can take say the WeapNewRifle_Scoped and make that the linked item in the PGD for the weapon template so whenever that PGD item is crafted, the WeapNewRifle_Scoped will be what is placed into your inventory.