- Thumb-nut bolts for turning leverage
- Optimal height and forward cantilever for AR platform rifles
- Sleek design for low-profile mounting
- Four-hole ring design for added gripping power
- Rugged cross-lock base design for ultimate gripping strength
The Thumb-Nut Special Purpose Rifle (SPR) Optics Mount has been designed for AR-style rifles. Their specialized, sleek design delivers optimal height with a forward cantilever for AR platform rifles. Constructed of lightweight, strong, aircraft-grade, 6061-T6 aluminum with a black matte anodized finish. Available for 1" or 30mm optics.