Radical Firearms FP105762X39HBAR10RPRBM | 10.50-inch

The Radical Firearms FP105762X39HBAR10RPRBM is an AR-style pistol built on MIL-STD upper and lower receivers and fitted with a 10.50-inch RPR free-float rail for accessory mounting and improved heat management. The free-float rail provides ample room for optics and controls while keeping the handguard area clear. For an optic under $1,000 that pairs well with this configuration, consider a low-power variable such as the Vortex Strike Eagle 1-6×24, which balances close-quarters acquisition and mid-range precision.

Typical applications include recreational range shooting and structured training sessions where a compact, modular AR platform is preferred.

Product Specifications

• The manufacturer is Radical Firearms.
• The model/part number is FP105762X39HBAR10RPRBM.
• The barrel measures 10.50 inches for compact handling.
• The barrel length range is 10 to 10.99 inches.
• The magazine capacity is 20 + 1.
• It includes a RPR free-float rail system for accessory mounting.
• The grip material is black polymer.
• The safety is a selector switch.
• The stock finish is black.
• The stock material is polymer.
• The product category is AR Pistols.
• The UPC is 814034029858.

The FP105762X39HBAR10RPRBM is a compact, accessory-ready AR pistol that emphasizes modularity and a clean, free-float rail for straightforward optic and control placement. Its construction on MIL-STD receivers makes it a familiar fit for users who want a compact platform that accepts common AR accessories. If you value a short-barrel platform with a full-length rail for customization and training use, this configuration presents a practical option.