This is a Weaver Riser, model 48375.
Designed for AR-style rifles" our SPR (Special Purpose Rifle) mounts are ultra-durable with minimal weight and bulk. Their specialized" sleek design delivers optimal height with a forward cantilever for AR platform rifles. They are constructed of lightweight" strong" aircraft-grade" 6061-T6 aluminum.
Features:
Aluminum construction
Sleek design
Minimal weight
