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The 20 MOA slope is designed to extend the elevation adjustment range of your scope, which is particularly beneficial for long-range shooting scenarios. It allows for more precise targeting at greater distances.
While it is optimized for use with Leupold BackCountry Cross-Slot Rings or Mark 4 Aluminum rings, the base is compatible with any rings that fit Picatinny rails, offering versatility in your choice of mounting hardware.
The base is designed for easy installation, allowing shooters to securely attach it to their Ruger American Long-Action Rifle without professional assistance, provided they follow the proper installation guidelines.
No, the base is made from lightweight 7075-T6 aluminum which ensures minimal impact on the balance and handling of your rifle while providing a strong and stable platform for your optics.
The matte black finish not only adds a layer of protection against corrosion and wear but also reduces glare and reflection, ensuring that it does not distract or give away the shooter's position in the field.
Review Summary
2026-04-25T20:00:00
Absolutely awesome
Nicholas E.

2026-04-25T20:00:00
Great product!
Michael S.

2026-04-15T20:00:00
Excellent product
Martin F.

2026-04-14T20:00:00
I only try to use Leupold Picatinny bases when possible, very reliable and durable.
Todd A.

2026-04-14T20:00:00
ALL GOOD
Troy C.

2026-03-30T20:00:00
I absolutely appreciate and covet all my Leupold products. From binos, to my Mark4, to scope bases and mounts everything is always top notch. If I've ever had a problem leupold has always made it right, and generally goes above and beyond to do so. Thanks. . .
Christopher W.

2026-02-26T19:00:00
Perfect fit
Richard T.

2026-02-15T19:00:00
Great picatinny rail for remington SA
Alvino G.

2026-02-13T19:00:00
Spot on; establishes multiple scope accommodations, enables efficient action engagement of ammo, and efficient action discharge of casings. It's simply one of the biggest no brainers in the history of man kind. Thank you, Leupold.
Ken W.

2026-02-09T19:00:00
Never been disappointed in anything I have used from Leupold and I have been shooting for a long time. Thanks everyone at Leupold
Perry S.

2026-02-08T19:00:00
This mount is fantastic. solid, clean looking and sturdy. This mount completes the package with the best scope on the market! Took a elk and a nice mule deer this year, couldn't be happier!
kevin b.

2026-01-31T19:00:00
Love it fits my browning xbolt 1 great had the right screws easy install this one works other brands do not fit right and it looks sweet
dennis b.

2025-12-21T19:00:00
It's a beautiful thing works great
Randy P.

2025-11-30T19:00:00
Easy clean fit
Justin C.

2025-11-29T19:00:00
Perfect fit!
Grant B.

2025-11-25T19:00:00
Nice fit
DEAN S.

2025-11-22T19:00:00
Works great
Jeremy O.

2025-11-15T19:00:00
Seems to be working great for my 300 win mag.
Edward J.

2025-11-12T19:00:00
The best
Billy W.

2025-11-09T19:00:00
Good fit
Kenneth S.

2025-10-13T20:00:00
Looks slick, tuff as nails and is made with absolute precision! Well done Leupold once again you've exceeded my expectations!
James G.

2025-10-06T20:00:00
they worked perfect
scott s.

2025-10-03T20:00:00
Easily installation. All screws /holes in perfect alignment with the action. All screws that secured the base to the action were perfect in length.
JAY C.

2025-09-28T20:00:00
Great product. Easily installed and love the look.
George C.

2025-09-22T20:00:00
Fits perfectly and is a solid mount!!
Matthew R.

2025-08-31T20:00:00
Rock Solid. American made quality I've come to expect from Leupold.
Nick W.

2025-08-29T20:00:00
Leupold is probably the best for any amount of money.
wesley g.

2025-08-25T20:00:00
It is fantastic and looks great with my lepold rings and my vx6HD Gen2
Steven E.

2025-08-20T20:00:00
Great product and did exactly what I needed.
Dustin B.

2025-08-14T20:00:00
Very satisfied, always have been with Leupold, great products, great service.
Todd M.

Accidents happen where life happens. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failure, and more.
If we can’t fix it, we’ll replace it at no additional cost.
Protect your product from drops, spills, and more.
Enjoy your gear without fear. We have you covered!
When regular use of your product over time results in mechanical or electrical failure.
We will never charge you a deductible after the purchase of a plan.
Our claims process is simple & easy and our customer service team is happy to help.
Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for purchase Internationally or in U.S. Territories.
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Ruger American Long Action Rifle
Aluminum
Just when you thought your Ruger American Long-Action Rifle couldn't get any more precise, the BackCountry Cross-Slot One-Piece Base steps in to elevate your shooting experience. Crafted from robust 7075-T6 aluminum, this Picatinny rail combines strength and lightweight convenience, ensuring that it won't weigh down your rifle while providing a steadfast platform for your optics.
Designed with a 20 MOA incline, this one-piece base is engineered to enhance your long-range shooting capabilities. The slope allows for a greater range of elevation adjustment in your scope, which is essential when engaging targets at extended distances. This feature is particularly beneficial for shooters who demand precision and reliability from their equipment when every shot counts.
The versatility of the BackCountry Cross-Slot One-Piece Base is evident in its compatibility with a variety of rings. It is optimized for use with Leupold's own BackCountry Cross-Slot Rings or the Mark 4 Aluminum rings, creating a cohesive and rugged mounting solution that stands up to the rigors of the field. The rail's design allows for flexible ring placement, giving shooters the ability to achieve the perfect eye relief and scope positioning for their individual needs.
This Picatinny rail is finished in a matte black coating that not only adds to its durability but also ensures it blends seamlessly with your rifle's aesthetics. The sleek design and professional finish make it an attractive addition to your firearm, while its functionality and performance features make it an indispensable tool for serious marksmen.
In summary, the BackCountry Cross-Slot One-Piece Base for the Ruger American Long-Action Rifle with a 20 MOA slope is a top-tier choice for shooters looking to enhance their rifle's accuracy and range. Its durable construction, thoughtful design, and compatibility with high-quality rings make it a standout product in the world of rifle accessories.