Description
The Leupold Mark 6 IMS (Integral Mounting System) 34 mm 20 MOA, part 170498, is a one-piece cantilever scope mount for AR and other flat-top Picatinny rifles. Machined from 6061-T6 aluminium with a matte finish, it sets the scope at 1.5″ (38 mm) ring height and pushes it forward to give correct eye relief without risers, while 20 MOA of built-in cant preserves elevation travel for long-range shooting. Weight 7.9 oz (224 g). Leupold has replaced the Mark 6 IMS with the Mark IMS 34 mm 20 MOA (176883), so this mount is run-out stock covered by the Leupold Full Lifetime Guarantee.
Key features
- 34 mm one-piece cantilever mount for Picatinny (Mil-Std 1913) flat-top rifles
- 20 MOA integral cant
- Ring height 1.5″ (38 mm) for a natural cheek weld on AR-pattern rifles
- 6061-T6 aluminium, matte black
- Weight 7.9 oz (224 g)
- Forward offset eliminates risers and short-eye-relief compromises
- Leupold Full Lifetime Guarantee; superseded by Mark IMS 34 mm 20 MOA (176883)
Frequently asked questions
Is this the same as the new Leupold Mark IMS?
The Mark IMS 34 mm 20 MOA (176883) is Leupold’s current replacement with the same 1.5″ height and 20 MOA; the Mark 6 IMS 170498 is the earlier version and is being run out.
Which scopes fit?
Any 34 mm main-tube scope; the 20 MOA cant best suits scopes you will dial for distance.
Do I need a licence to buy these?
No. Scope bases and rings are accessories and ship Australia-wide from 3 Gun Tactical, Tingalpa QLD.
Shooting accessory – not a firearm; no licence is required to purchase and it ships Australia-wide. Specifications from the manufacturer. 3 Gun Tactical, Licensed Firearms Dealer 50001578, Tingalpa QLD.





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