Set of 2 low-profile mounting rings for the McMillan M40A3 airsoft sniper rifle (Ref. 17993). CNC machined mounting rings for scope or red dot. Complete your McMillan M40A3 loadout with these mounting rings, front accessory rail (Ref. 18124) and bipod (Ref. 18126).
CNC Machined Aluminum construction
Inner diameter: 30mm
Centerline height above rail: approx. 22.5mm
Fits 20mm rails