Weaver SPR Thumbnut 1 in Scope Mount, Matte Black

Designed for AR-style rifles, the Weaver Thumbnut SPR (Special Purpose Rifle) mount secures 1 inch optics forward on the receiver using a cantilevered platform. Tool-less thumbnuts allow quick installation and removal on Picatinny-style rails. The mount incorporates an integral recoil lug base and is constructed from aircraft-grade aluminum with a durable black finish.

Key Specifications

• Constructed from 6061-T6 aluminum for a balance of strength and light weight.
• Designed to fit Picatinny rails for AR-style rifles.
• Accepts a 1-inch scope/tube diameter.
• Mount height is 1.50 inches from the bottom of the base to ring centerline.
• Features a forward cantilever of 0.809 inches for optic placement.
• Overall length measures 5.375 inches.
• Includes an integral recoil lug base for improved accuracy and return-to-zero capability.
• Rings are not included.
• Elevation is 0 MOA.

The Weaver Thumbnut SPR mount provides a low-profile, cantilevered platform that positions 1 inch optics for AR-style setups while retaining return-to-zero capability through its integral recoil lug. Its tool-less mounting hardware and aircraft-grade construction make it a practical choice where consistent optic placement and minimal bulk are priorities.