Lantac SF15 USR Forged Upper & Lower Set Black

The Lantac SF15 USR is a forged upper and lower receiver set finished in black and intended as a foundation for an AR-15 build. The upper includes a Picatinny rail and is precision machined for alignment with the lower; it also ships with a forward assist and dust cover. The lower features a flared magwell and a tension screw and is stated to be compatible with standard AR-15 parts and accessories. This set provides core receivers for custom builds focused on accuracy and reliable interface between components.

Common applications include use as the basis for a precision-oriented range rifle and as the starting point for a custom AR-15 build or parts-upgrade project.

Product Specifications

• The manufacturer is Lantac USA.
• The model is SF15 USR.
• The set includes forged upper and lower receivers.
• The finish/color is Black.
• The upper receiver features a Picatinny rail system for mounting optics and accessories.
• The upper includes a forward assist and a dust cover.
• The upper is described as precision machined to ensure alignment with the lower.
• The lower includes a flared magwell to facilitate faster magazine changes.
• The lower includes a tension screw to help ensure a snug fit with the upper.
• The lower is compatible with standard AR-15 parts and accessories.
• The category is listed as AR15 Lowers.
• The product UPC is 784672911078.

This forged upper and lower set offers a solid, well-specified foundation for builders who prioritize precise fit and modularity. Use it as the starting point for a dedicated range rifle or a tailored competition/custom build where component alignment and accessory mounting options matter.