Custom Piece – M4 carbine equipped with the URG I Upper Receiver Group Improved – 3D Print for LEGO minifigure

this item is a miniature replica of an M4 carbine equipped with the URG-I (Upper Receiver Group – Improved) and a magnified optic, likely a 4x scope, along with a suppressor.

Here’s a breakdown of its features:

• URG-I Handguard: The distinctive M-LOK handguard is a key feature of the URG-I, which is an upgrade for M4 carbines used by US Special Operations forces. It’s typically associated with Geissele.
• Magnified Optic: It has a telescopic sight, consistent with the “四倍镜” (4x scope) mentioned. This is often a Low Power Variable Optic (LPVO) or a fixed power scope like an ACOG.
• 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.
• Backup Sights: It appears to have backup iron sights, possibly offset or folded.

So, to describe this in English:

“This is a miniature replica of an M4 carbine fitted with the URG-I (Upper Receiver Group – Improved). It is equipped with a magnified optic, likely a 4x scope, a suppressor, a modern adjustable stock, and the characteristic URG-I M-LOK handguard. This configuration is representative of upgraded M4 carbines used by special operations forces.”

Therefore, the specific gun it represents is an M4A1 URG-I (or a very close derivative).