Lead & Steel LBUS Polymer Back Up Sights

4.50 out of 5
(4 customer reviews)


Available on backorder

Available on backorder


These molded impact-resistant Polymer Backup Sights back up sights are affordable and dependable. Don’t let the price tag fool you! This is a reliable Plastic Backup Sights set that is guaranteed to hold zero shot after shot. Skip the Amazon garbage and get something that you can rely on without breaking the bank (they are backups, after all!).

Windage and elevation adjustment doesn’t need any special tools, and just like the dials used to adjust POI, the detents that secure the sights in the upright position are steel-reinforced.

For reference, overall footprint is similar to Magpul’s Mbus Backup Sights. Mil Std 1913 spec, so it’ll fit on your AR’s pic rail. Might need a few love taps with a mallet depending on rail thickness. Also, please note that crossbolts are METRIC.

We’re really proud of these! Let us know if you have any suggestions.

Additional information

Weight 3 oz

4 reviews for Lead & Steel LBUS Polymer Back Up Sights

  1. 5 out of 5


    Very satisfied with my purchase, they seem very durable and I tend to be harder on my guns than I’d like. A good alternative to mbus and at a great price point.

  2. 5 out of 5


    These back up sight are perfect for a budget build, they hold zero really well and are lightweight to boot!

  3. 5 out of 5

    Niko (verified owner)

    Extremely solid feeling and has no play whatsoever. I didn’t expect much when I ordered them but they feel better than my other polymer sights and they also sit lower on the rail, no space between the sight and the rail. Dare I say best polymer back up sights for the money out there? can’t just yet gotta go shooting with them first but first impressions are great.

  4. 3 out of 5

    Maxwell Jergerian (verified owner)

    These work as back-up sights but I’d plan on getting something more for a primary optic. Mine had a little bit of loose plastic shavings in the diopter on arrival. Super easy to install, no play once it’s on, and holds zero well. Feels sturdy for a polymer sight. Picking up the front sight is a bit more difficult on follow-up shots than I was expecting, but I’m sure that could be improved with a little bit of light-colored paint on the post – I just wish it were a little thicker. Overall 3/5 comparable to Magpul MBUS.

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