DNT Optics ADM AD-170-S QD Mount
Mount for one thermal or NV line · QD · 1.2 in height · $90
QD mount
A quick-detach mount: a lever or throw clamp takes the scope off the rail without tools. Worth it only if it goes back to the same zero, so mark the rail slot.
Maker's full product title: "ADM QD Mount American Defense Manufacturing AD-170-S".
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Optics it fits
DNT Optics says: "will mount to all models of our digital scopes, including the ZULUS HD, ThermNight and Hydra series" (with DNT's M5x8 screws).
Maker says it fits
Tube center above the rail is calculated only when the mount maker says where its height is measured from and the optic maker states a tube diameter; each blank says which figure is missing.
Specs
| Type | |
|---|---|
| Type QD mount A quick-detach mount: a lever or throw clamp takes the scope off the rail without tools. Worth it only if it goes back to the same zero, so mark the rail slot. | Mount for one thermal or NV line |
| Built by | American Defense Manufacturing (ADM) |
| Mounts to | |
| Clamps onto Picatinny and Weaver rails The slotted rails most mounts clamp onto. Picatinny (MIL-STD-1913) has evenly spaced slots of one width; Weaver slots are narrower and spaced irregularly. Weaver mounts fit Picatinny; the reverse not always. | PicatinnyPatented QD Auto Lock lever system; "compatibility with both in-spec and out-of-spec rail systems" |
| Quick-detach QD mount A quick-detach mount: a lever or throw clamp takes the scope off the rail without tools. Worth it only if it goes back to the same zero, so mark the rail slot. | YesQD Auto Lock lever; "Lever can be configured to lock to the front or the rear"; adjustable by finger or flat blade screwdriver |
| Holds | |
| Holds | Maker's own interfaceAD-170S base; DNT supplies countersunk M5x8 screws ("do not use the factory mount screws as they are too long"); "The channel is wider than the ridge under our scopes" |
| Geometry | |
| Height, as published Scope height over bore How far the scope's center sits above the barrel's center. It decides your cheek weld and the bullet's path at close range. We calculate only the part above the rail, where makers publish it. | 1.2 in (30.5 mm)"will lower your optic height from 1.54” down to 1.2”" |
| Where the height is measured | Centerline height; the maker does not say where it is measured from |
| Cantilever Cantilever mount A one-piece mount whose rings sit forward of the rail clamp, usually about 2 in. It moves the scope forward so a thermal's short eye relief works on an AR-15's flat-top rail. | Not stated |
| Forward offset Cantilever mount A one-piece mount whose rings sit forward of the rail clamp, usually about 2 in. It moves the scope forward so a thermal's short eye relief works on an AR-15's flat-top rail. | Not published"This mount will also shift your optic forward so your eye relief will shift" |
| Weight and build | |
| Weight Weight How heavy the device is. Check whether the maker weighed it with or without the battery, because brands do it differently. | Not published |
| Material | 6061 T6 aluminum, hard coat type 3 Mil-Spec anodize |
| Buying | |
| Made in | USA |
| Warranty Warranty How long the maker promises to repair or replace a faulty unit. Check whether it needs registration and whether it passes to a second owner. | Lifetime ("American Defense MFG, LLC. products feature a lifetime warranty") |
| Maker part number | AD-170-S |
| US price US price The price we found for the unit in the US, with where it came from and when. Prices change often, so treat it as a snapshot. | $90DNT global store (dntoptics.com), compare-at $94.99; not listed on the DNT US store |
DNT: "The AD-170S was not designed for our scopes but the footprint will mount to all models of our digital scopes"; "The ADM is very low profile"; for factory height "a third party riser will be needed" (DNT suggests the Midwest Industries Atlas QD). The 1.2 in figure is the optic height on this mount, not a mount dimension.
Source: DNT global store, ADM AD-170-S page.
Added October 12, 2026 · Specs last checked October 12, 2026
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