I use Spot Hogg and while they may be a touch heavy....they are bullet proof. I have several friends who use the Axcel sights and have had a branch go through the housing and destroy pins. For durability, it's tough to beat the Spot Hogg but at the cost of some weight. The Hogg-It sights are great as far as a fixed pin sight goes. The Tommy Hogg is an excellent adjustable hunting sight.
LC
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