The Nikon M-308 Rifle Scope is designed for long range precision and with the popular .308 AR platform in mind. The M-308 is packed with features that will prove themselves time and time again in the field or at the range. The fully multi-coated lenses and Ultra ClearCoat optical system deliver superior image clarity and resolution and up to 95% light transmission. The NikoPlex Model features Rapid Action Turrets that are calibrated for the trajectory of the .308/7.62 NATO Match round with 168 grain HPBT bullets, allowing the shooter to dial in known distances out to 800 yards. If you prefer hold over, the reticle models feature Tactical turrets with 1/4 MOA click adjustments and holdover points out to 800 yards with .308 168 grain bullets. A locking side focus, generous 4″ eye relief, rugged 1-piece 1″ tube, 40 MOA of internal adjustment and the included 20 MOA elevated M308 1-Piece mount make this the ideal setup for the AR-10 or .308 bolt action firearm. The included M-308 mount fits standard picatinny-style rails and with the enhanced mounting space of the M-308 rifle scope, you can mount the scope to exactly the eye relief for your shooting style. Covered by a limited lifetime warranty. .