Custom Piece – M4A1 carbine URG I with an ACOG sight and suppressor – 3D Print for LEGO minifigure

an M4 carbine equipped with the URG-I (Upper Receiver Group – Improved) and a Trijicon ACOG optic, along with a suppressor and other accessories.

Here’s a breakdown of its features:

• URG-I Handguard: The rifle features the distinctive M-LOK handguard characteristic of the URG-I, often a Geissele model, used in upgrades for US Special Operations M4 carbines.
• Trijicon ACOG Optic: The optic mounted on top is clearly modeled after a Trijicon ACOG (Advanced Combat Optical Gunsight), a common magnified optic used by military forces. It might also have a small red dot sight mounted on top of the ACOG (a common configuration).
• Suppressor: A suppressor is attached to the muzzle.
• Stock: It has a modern adjustable carbine stock.
• Pistol Grip: Standard M4/AR-15 style pistol grip.
• Magazine: A standard capacity AR-15 style magazine.
• Accessories: There appears to be a weapon light and/or laser module mounted on the side of the handguard, and potentially a vertical foregrip or handstop.

So, to describe this in English:

“This is a miniature replica of an M4 carbine featuring the URG-I (Upper Receiver Group – Improved). It is equipped with a Trijicon ACOG scope (possibly with a piggybacked mini red dot sight), a suppressor, a modern adjustable stock, a tactical weapon light or laser module, and the distinctive URG-I M-LOK handguard. This configuration is representative of an upgraded M4 carbine commonly used by special operations forces.”

Therefore, the specific gun it represents is an M4A1 URG-I with an ACOG sight and suppressor.