Nikko Stirling Mountmaster 4 x 40 scope - Gun Mart
https://www.gunmart.net/scopes-and-optics/scopes/rifle-scopes/nikko-stirling-mountmaster-4-x-40-scope
WebDec 16, 2016 · The full moniker for this model is the 4X40 AO Mountmaster, denoting a fixed magnification of 4x and a front objective lens diameter of 40mm. ‘AO’ stands for adjustable objective lens, and when you consider that this scope even comes complete with a set of ring mounts and lens covers, that RRP seems even more amazing.
DA: 19 PA: 64 MOZ Rank: 84