The Athlon Optics Argos BTR Gen II 6-24X50mm APLR2 Rifle Scope features the Athlon Lifetime Warranty in which Athlon Optics will repair or replace your product if damaged through normal use. You can find out more by using the link below:
https://athlonoptics.com/lifetime-warranty/
The Athlon Optics Argos 6-24 x 50 mm Rifle Scope has 60MOA of adjustment. If you are shooting beyond 600 yards I recommend using a 20 MOA base.
The Athlon Optics Argos 6-24 x 50 mm Rifle Scope does not come with a sun shade. The sun shade at the link below will work with this scope. https://www.opticsplanet.com/athlon-optics-argos-btr-50mm-riflescope-sunshade.html
If you have a picatinny scope base on your Browning HellsCanyon then I recommend using the Vortex Pro Series Rifle Scope Rings at the link below. You will need the 30mm diameter medium height or high height model. The guide at the second link below will help you determine the correct height rings you need for your specific set up.
https://www.opticsplanet.com/vortex-pro-series-30mm-riflescope-rings.html?_iv_tube-diameter=30-mm&_iv_ring-height=high-1-dot-26-in,medium-1-in
https://www.opticsplanet.com/howto/how-to-how-to-measure-scope-height-scope-ring-height.html
To mount the Athlon Optics Argos 6-24 x 50 mm Rifle Scope to an AR Platform I recommend using a cantilever mount. The 30mm diameter scope mounts at the link below will work well.
https://www.opticsplanet.com/athlon-optics-cantilever-scope-mounts.html?_iv_tube-diameter=30-mm
To mount the Athlon Optics Argos 6-24 x 50 mm Rifle Scope to a Savage Axis 2 Precision, I recommend using 30mm diameter high rings. The rings listed at the link below will work.
https://www.opticsplanet.com/athlon-optics-precision-riflescope-rings.html?_iv_code=28W-RR-PRCR-701004&_iv_ring-height=1-dot-443-in&_iv_tube-diameter=30-mm
To mount the Athlon Optics Argos 6-24 x 50 mm Rifle Scope to a Savage 110 Tactical I recommend using the rings listed below.
https://www.opticsplanet.com/mdt-34mm-premier-scope-ring.html?_iv_parent-tube-diameter=30-mm&_iv_tube-diameter=30-mm&_iv_ring-height=high-1-dot-25-in
To mount the Athlon Optics Argos 6-24 x 50 mm Rifle Scope to a Sig 716i, I recommend using a cantilever mount. The mount listed below should work just fine.
https://www.opticsplanet.com/midwest-industries-scope-mount-gen2.html?_iv_diameter=30-mm
Yes, the Athlon Optics Argos 6-24 x 50 mm Rifle Scope has Zero Stop Locking adjustment turrets.
That is a hard question to answer since it depends on what aspects of a certain brand or optic people like. Athlon Optics make good products as well as Vortex and Leupold. It comes down to what specific features you are looking for in your rifle scope for its application and your budget. Here is a guide that might help you in selecting the right rifle scope for you.
https://www.opticsplanet.com/howto/how-to-choose-a-riflescope.html