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Outdoorsmans ATX/STX/BTX 115 Balance Rail

Original price $149.99 - Original price $149.99
Original price
$149.99 - $149.99
Current price $149.99

The 115 Balance Rail is specifically designed for the BTX/ATX with a 115 mm objective lens. The Balance Rail attaches to the bottom foot of the optic and supports the objective lens and eyepiece for a much more solid base. The bottom of the rail is already contoured to fit Arca Swiss style heads but if you are using another adapter type, you can use one of the four 1/4-20 holes on the bottom to attach your quick-release plate. At only 2.75 ounces, once it's on, you won't leave home without it.

The Balance Rail will work with a 1.7 ME attached. All mounting hardware is included.

ONLY FITS ATX/STX with 115 mm objective lens.


Weight (oz) 2.93
Material Polymer
Dimensions (in) L8 x W2 x H1 1/2
60 Days Money Back Guarantee Lifetime Limited Warranty 100% American Made

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Customer Reviews

Based on 13 reviews
jacques normand

Outdoorsmans ATX/STX/BTX 115 Balance Rail

john ostaff
BTX Rail for my 115

it works great. super easy to install. extremely sturdy, like everything else these guys build its awesome!

Barry Hallsted
It took some tweaking, but it is perfect now!

I bought the 115mm lens to use with my ATX and BTX eyepieces. I love the lens, but getting it to balance has been extremely frustrating. Swarovski says they are trying to fix the tripod mount design flaw. I tried the Swarovski balance rail. It doesn't work at all. Swarovski sent me a piece that was supposed to fix the problem. It was designed holes in the wrong spot, so that doesn't work. I saw the Outdoorsman's reviews and decided to try it out. Initially is was a little dismayed. Yes, it worked, but the polymer would warp when it was barely tightened. You can see how much it would flex in my pictures. I also really wanted to use my stay on cases SOC that I paid WAY too much for already, but the good guys at Outdoorsman's said it would not work. I ended up buying a mounting screw 5/16" inch longer and it actually fits great with the SOC and has much less flex. I am SUPER pleased! One pic shows the balance point with the ATX, another the balance point with my digiscoping camera installed. I forgot to take a picture with the BTX, but just know it also fits and balances perfectly. Until Swarovski fixes their design flaw, this IS the answer!

EZ to use and helped

Stabilized the big beast swaro. Ez to use too. A+. And it’s super light weight.

Dustin Prevedel
BTX 115mm rail

It’s nice and light just wish it was compatible with the single eye piece, now I gotta take everything apart if I wanna use higher lens power

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