Custom Piece Miniature – SIG SG 553 rifle equipped with an ACOG style optic – 3D Print for LEGO minifigure

this item is a toy model of a SIG SG 553 rifle, equipped with an ACOG-style optic and a vertical foregrip.

The “fullContent” hint “swat 552” refers to the SIG SG 552, which is a very similar rifle in the same family; the SG 553 is an updated version of the SG 552. The visual characteristics of this toy align well with the SIG SG 550 series of rifles, specifically the compact carbine versions.

Key features visible that point to an SG 553 (or 552):

• The distinctive shape of the receiver and handguard.
• The type of folding stock.
• The ACOG-style (Advanced Combat Optical Gunsight) optic, as indicated by “ACOG” in the filename.
• The vertical foregrip.
• The translucent-style magazine common to this rifle series.

So, in English, you could describe it as:

• “A LEGO minifigure compatible toy model of a SIG SG 553 carbine with an ACOG-style optic and vertical foregrip.”
• “A miniature SIG SG 553 (or 552) assault rifle accessory for LEGO figures.”

The specific firearm it is most likely modeled after is a SIG Sauer SG 553 (or the very similar SG 552 Commando) carbine.