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177-181N Switchview throw lever

(10 customer reviews)



Switchview™ USA Sportsmans magnification adjustment throw lever – model 177-181N

Another great option is the Switchview USA Eagle Eye Universal throw lever.  Check it out here.


Cabelas Euro

Vortex Viper PST Gen II

Various scopes with magnification ring measurement of between 1.77″ – 1.81″

To be sure of the model/generation of scope you have, measure the magnification ring diameter.

Specs: Lever length: .780”.

Ring diameter: Variable – 1.770 – 1.810″ round – NOTE, fits only on round scope rings with no index bump/knob.

Color: Flat Black.

67 in stock (can be backordered)


The 177-181N Switchview throw lever is pretty much a “must have” addition to any variable powered magnified optic.  Like we’ve heard so many times before, “once you use one, you won’t be able to figure out how you ever got by without one before”!!!

Our 177-181N Switchview throw lever is our Sportsman’s line of scope magnification adjusters. Made of a 3D printed nylon material, this is a perfect throw lever for any hunting/sporting situation.  We’re also proud to say that 100% of the Switchview product line is manufactured in the United States of America.

If you haven’t seen the “DSFD” (Double Screw Fold Down) version of this Switchview, you can check it out here.

Our DSFD Switchview throw lever is our definition of simplification. The two-screw design increases adaptability for a more precise fit on various scope brands and models.

We’ve integrated our new “folding” design into these new DSFD levers for several reasons.  The main reason is it won’t hang up on stuff!  Whether you’re using your rifle for hunting, competition, or work, you’ll find that the new folding design offers many benefits over our fixed levers.

We usually mount the Switchview so the lever folds back towards the rear of the gun.  This way it will fold down when you’re stuffing it into a soft case, discarding it into a drop box in a competition or dragging it through the bushes and trees on a hunt. If you want it to be a little “stiffer” you can add a little tension to the screw that holds it in place.

If you want a little longer top or a little shorter top, we have one hole and three hole replacements as well.  Check them our on our “lever top” page you can find here.

Another great option is the Switchview USA Eagle Eye Universal throw lever.  Check it out here.

Additional information

Weight 0.5 lbs
Scope Ring Bump Height

Scope Ring Bump Width-Base

Scope Ring Bump Width-Peak

Scope Diameter

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10 reviews for 177-181N Switchview throw lever

  1. Marty G. (verified owner)

    good quality, price and service.

  2. Michael Langlois (verified owner)

    Very well made!
    Perfect size – not to large like others. Also half the price.

  3. bill (verified owner)

  4. Willard J. (verified owner)

    Had the same problem getting screw started as with the 172-176N. Patience is the keyword here… haste makes waste! Overall fit was as secure as the aluminum version I have had for some time, in the other size. Again ruggedness will have to be determined after some field use. So far, I am extremely satisfied!

  5. Derek Steele (verified owner)

    Perfect. Wallet friendly and fit on my SWFA SS12X. Mounted fairly low on a Diana 56TH.

  6. Dave S. (verified owner)

  7. Brandon (verified owner)

    Great product

  8. Nicholas (verified owner)

  9. Anonymous (verified owner)

  10. Wendell T. (verified owner)

    This item fits and functions perfectly. The quality of the product was top notch. The Company’s communication with me was outstanding and I would not hesitate to recommend them to anyone and will definitely use them for all my scope throw lever needs in the future.

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