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The American Defense AD-Delta is a one-piece, quick-detach mount built for getting serious glass onto a continuous top rail. It cradles a 30mm scope tube at a 1.5" centerline height and runs 0 MOA with no built-in eye relief, so it's a straightforward, no-nonsense option for rifles with full-length receiver rails like the FN SCAR, AR-10, and flattop AR-15 platforms. Machined from 6061-T6 aluminum and finished in a hard coat anodize, it's light on the rifle but tough enough to shrug off hard-recoiling cartridges.
The heart of this mount is American Defense's patented QD Auto Lock lever system. It clamps to a Picatinny rail without any proprietary tools, and the levers can be adjusted with your finger or a flat-blade screwdriver to dial in tension for both in-spec and out-of-spec rails. You can even configure the levers to lock facing the front or the rear depending on how you want them oriented. The clamping surface is generous, which means solid rail engagement and the kind of consistent, repeatable return to zero that matters when you pull the optic and put it back on.
These are traditional top-loading horizontal rings, so you drop your scope in, set the top caps, and torque them down. With roughly 3.39" of inner ring spacing, it handles a wide range of main tube lengths. The design was adapted for the FN SCAR program and carries SOCOM approval, which tells you it's been put through the wringer. The glove-friendly levers are a nice touch for cold-weather or gloved use, and the whole thing is backed by American Defense's lifetime warranty.
If you're running a precision optic on a SCAR 17, an AR-10, or any flattop that needs a dependable one-piece base, the AD-Delta is a proven workhorse that's made right here in the USA.
It's designed for rifles with a continuous full-length top rail, so it shines on the FN SCAR, AR-10, and flattop AR-15 platforms. The 1.5" centerline height lines up well with AR-pattern cheek weld. Since it has no built-in eye relief, you'll want enough rail real estate to position the scope where your eye naturally lands.
Yes. The patented QD Auto Lock lever system is built for repeatable return to zero, so you can pull the optic and remount it with confidence. The large clamping surface grabs the rail firmly and the levers hold tight until you release them.
No proprietary tools are required for the lever adjustment. You can tension the QD Auto Lock levers with your finger or a flat-blade screwdriver to match your specific rail, which is handy since it accommodates both in-spec and out-of-spec Picatinny rails. You'll just need a standard torque wrench or Allen key to secure the ring caps over your scope.
No, this is the standard AD-Delta, which is a straight one-piece mount with no built-in eye relief and a 0 MOA setup. If you need a forward offset to clear a shorter rail, American Defense makes a separate cantilever version, but this particular model places the rings directly over the rail.
| UPC | 818503011580 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | AD-DELTA-30-STD |
| Style | Mount |
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