AR 10 style pistol or a similar 308 caliber short-barreled rifle – Custom 3D Printed Miniature Accessory Parts Pieces for Brick Block Figures

A Lego minifigure compatible tactical rifle, likely modeled after a short-barreled rifle or AR-style pistol, featuring a magazine, a picatinny rail handguard, and a suppressor.

Based on the visual characteristics and the common “308 pistol upper 7.5” description for similar real firearms, this toy gun most closely resembles a custom AR-10 style pistol or a similar .308 caliber short-barreled rifle with a suppressor. The “7.5” likely refers to a 7.5-inch barrel length, which is a common configuration for AR-style pistols, and “.308” refers to the caliber it is designed to look like it chambers. These types of firearms are known for their compact size and power. This Lego accessory replicates that modern tactical firearm aesthetic.