Weaver Thumbnut Integral 1" Blem

The Weaver Thumbnut Integral 1" Blem is a one-inch picatinny riser with an integral rail system designed for mounting optics and accessories directly onto your tactical platform. This matte-finished riser elevates your sight line by one inch, a critical dimension for co-witnessing iron sights with magnified optics or achieving proper eye relief with red dots and low-power variables. The integral rail design eliminates the need for separate rail sections, simplifying installation and reducing part count while maintaining full picatinny compatibility.

The one-inch height specification is essential for operators running top-of-rail mounted optics who need to clear tactical handguards, gas blocks, or front sight posts. The matte finish resists reflection and matches standard mil-spec receiver finishes. At 0.56 lbs, the riser adds minimal weight to your upper assembly while providing a rigid, repeatable mounting surface. The integral rail design maintains zero concerns about rail alignment or slippage—the riser and rail function as a single unit once properly torqued to your receiver's picatinny rail system.

This riser is ideal for AR-15 and AR-10 platforms, as well as any firearm featuring a picatinny rail system on the upper receiver. Shooters building precision rifles, patrol carbines, or duty weapons benefit from the repeatable mounting surface and simplified accessory arrangement. The blemished condition—typically minor cosmetic marks or packaging damage—has no impact on functional performance, making this an exceptional value for budget-conscious shooters and departments.

Weaver has established a reputation for precision optics mounting solutions with tight tolerances and repeatable zero retention. The one-inch riser format is a proven standard across military, law enforcement, and competitive shooting communities, ensuring compatibility across generations of equipment.