Description
Aero Precision built the Ultralight Extended Scope Mount for folks who want a solid, no-nonsense way to get a 1" scope or LPVO onto an AR without adding a bunch of weight up top. The headline feature here is the extended profile: the rear ring sits a full inch forward compared to the standard version, which gives you more room to dial in comfortable eye relief. That extra inch matters when you're running a shorter length of pull or just want flexibility to slide your optic back without maxing out the rail.
What Sets the Ultralight Extended Mount Apart
This is a one-piece base and ring combo machined from 6061-T6 aluminum and finished in a black hard coat anodize, so it shrugs off the usual range abuse. Weighing in right around 3 ounces, it lives up to the Ultralight name and is one of the leaner cantilever options out there. The cross-slot keyway drops into a Mil-Spec 1913 Picatinny rail and gives you real recoil protection, so your zero stays put shot after shot.
Getting the Ultralight Scope Mount Dialed In
Mounting is straightforward for any AR-pattern upper. Aero calls for 15 in-lbs on the screws, and a good torque wrench takes the guesswork out of it. Because it's a single-piece design, ring alignment is handled for you right out of the package, which means no lapping and less fuss getting your crosshairs where they need to be.
If you're setting up a scoped AR-15 or a similar flattop rifle and want a dependable, lightweight home for a 1" tube optic, this extended mount checks the boxes. It's a popular pick for traditional variable scopes and LPVOs alike, and it's proven itself across plenty of builds from flat-tops to 5.56 rifles.
Key Specifications
- Manufacturer: Aero Precision
- Model: Ultralight
- Manufacturer Part Number: APRA210400
- UPC: 815421020069
- Product Type: 1-Pc Base & Ring Combo
- Style: Extended
- Scope Tube Diameter: 1 inch
- Mount Type: Mil-Spec 1913 Picatinny Rail
- Material: 6061-T6 Aluminum
- Finish: Black Hard Coat Anodized
- Length: 4.75 inches
- Weight: 3.07 oz
- Fit: AR Platform Flattop Uppers
- Rings Included: Yes
- Torque Spec: 15 in-lbs
- Made in USA: Yes
What’s Included
- Aero Precision Ultralight 1" Extended Scope Mount (one-piece base and ring combo)
- Mounting hardware
Frequently Asked Questions
What scope tube size does the Ultralight Extended mount fit?
This mount is built for 1" tube optics. If you're running a scope or LPVO with a 30mm or 34mm tube, you'll want a different version. Double check your scope's tube diameter before ordering so the rings clamp correctly.
What's the difference between the Extended and Standard Ultralight mount?
The Extended version pushes the rear ring forward a full inch compared to the Standard model. That gives you more eye relief range and is handy for shorter length of pull or when you want to slide the optic back on the receiver. Everything else, including the lightweight build and 1913 Picatinny fit, stays the same.
Will this scope mount fit my AR-15?
Yes, it's designed for AR-type upper receivers with a Mil-Spec 1913 Picatinny rail. The cross-slot keyway locks into the rail slots for solid recoil protection and repeatable zero. Any standard flattop AR upper is a good match.
How much does the Ultralight Extended mount weigh?
It comes in right around 3.07 ounces, which is why Aero calls it the Ultralight. Machined from 6061-T6 aluminum, it trims weight off your rifle's top end without giving up rigidity. That makes it a smart option if you're trying to keep a build light.



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