SwampDeer HD 511A Red Dot Sight
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SwampDeer HD 511A — Red Dot Sight
A compact dual-reticle red dot with a 2 MOA precision dot or a 35 MOA circle for fast target acquisition, built to an IP78 waterproof rating.
Is the SwampDeer HD 511A worth buying?
For close-to-mid range work, it's a solid value pick — the dual reticle option (2 MOA dot alone, or with a 35 MOA circle) gives you both precision and fast acquisition in one sight, and IP78 is a genuinely strong waterproof rating for this price bracket. The product page doesn't list battery type or runtime, which is a real gap in the spec sheet worth asking about before you buy.
A dual-reticle dot built for speed and durability
The HD 511A pairs a 2 MOA dot with an optional 35 MOA circle reticle in a 34mm window, aimed at tactical and hunting use where fast target acquisition matters as much as precision. It's rated IP78 for water resistance and 1200G for shock.
What you get in a compact package
2 MOA dot or 35 MOA circle-dot
You can run the tight 2 MOA dot for precision or switch to the 35 MOA circle-dot combo for faster close-range acquisition — flexibility a lot of single-reticle red dots don't offer.
IP78 waterproof, 1200G shock rated
IP78 is a strong rating for a red dot at this price — it points to real submersion resistance, not just splash protection — backed by a 1200G shock rating for rough handling.
±75 MOA range, 1 MOA per click
A wide ±75 MOA windage and elevation range gives plenty of room to dial in zero, adjusted in 1 MOA increments.
215g, compact 34mm window
At 215g and 83.8×44.1×42mm, it's light enough not to unbalance a carbine, with a 34mm window for a wide field of view relative to its size.
Full spec sheet
| Dot size | 2 MOA |
| Reticle options | 2 MOA dot, or dot + 35 MOA circle |
| Waterproof rating | IP78 |
| Shock resistance | 1200G and above |
| Adjustment | 1 MOA/click, ±75 MOA range |
| Parallax | 0.5 MOA at 20m; effectively eliminated under 15m |
| Dimensions | 83.8 × 44.1 × 42mm |
| Weight | 215g |
| Battery type / life | Not listed on product page |
Pros & Cons
Pros
- Dual reticle option (2 MOA dot, or dot plus 35 MOA circle) covers both precision and fast acquisition.
- IP78 is a genuinely strong waterproof rating for this price bracket.
- 215g keeps it light enough not to throw off a carbine's balance.
- Wide ±75 MOA adjustment range for dialing in zero.
- Currently discounted about 13% off list price.
Cons
- Battery type and runtime aren't listed on the product page — worth confirming before you buy.
- This listing has shown as sold out at times — check current stock before getting set on it.
- Mount compatibility isn't detailed on the page; confirm before ordering rings or risers.
- As a sub-brand niche optic, there are fewer independent long-term reviews to cross-reference.
Answers before you buy
What's the difference between the two reticle modes?
How waterproof is it really?
What battery does it use?
Is it currently in stock?
What's the adjustment range?
Is there a warranty?
A capable close-range red dot with one real information gap
The dual reticle and IP78 rating make a good case for this at its price, but the missing battery spec is a legitimate gap you should close by asking Artcise directly before ordering — especially if you plan to rely on it for extended use.
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