Aimwin PE330

Review

Enclosed micro red dots are not a new thing. However, Aimwin is a fairly new company in the optics market. One of their newest editions is the PE330 enclosed red dot. The PE330 red dot comes with an enhanced feature set and mounts directly to RMSc style footprints.

As mentioned, the Aimwin PE330 is an enclosed emitter style red dot optic. This gives the PE330 some advantages over open emitter style red dots. It protects the internals from dust, water, and any other debris. It also makes the lenses easier to clean. Living where I live, having an enclosed red dot is a big advantage because of the rain we get in Oregon. The water doesn’t get trapped inside the lens like on an open emitter style. So if you need to wipe the water off, it is just a simple wipe, not a scrub and soak.

The exterior of the Aimwin PE330 is 6061 aluminum. 6061 style aluminum seems fine for this type of optic. The hard anodized aluminum exterior helps to make the PE330 pretty durable. The PE330 also is water resistant, nothing is water proof. Aimwin specs it out as IPX7, which is submerged at 1 meter for a 30 minute time frame. This is pretty standard on these styles of red dots. It didn’t leak on me, but I also didn’t swim with it on.

When dealing with micro red dots, the mounting footprint is super important. The Aimwin PE330 uses an industry standard RMSc footprint. This footprint is what a lot of micro compact pistols use for direct mounting to the slide. Oddly enough, the RMSc footprint is also used on some 1911 and 2011 full size pistols. Having that industry standard footprint really makes the PE330 standout for mounting on various styles of pistols. Included with the optic is a bunch of various size mounting screws. So finding the correct screw for your mounting surface is super easy. I always like it when companies put in those extra mounting screws, that way I don’t have to hunt some down in my screw bin.

When it comes to powering the PE330, Aimwin uses a CR1620 battery. This is a slightly thinner battery than the CR1632, which is used in a lot of RMSc footprint red dots. Aimwin states a 20,000 hour battery life. So even though it isn’t as long as others, it is still plenty. Aimwin also designed the PE330 with a side load battery. So when you do change that battery, it is super easy to do and will not affect your zero. Something I haven’t seen with other red dots is that Aimwin includes extra battery tray screws. I will probably lose the extra screws before I actually need to replace one, but they are there just in case.

The PE330 isn’t just a red dot, it is a multi-reticle system. It includes a 3 MOA dot and a 40 MOA circle. You can combine these into a dot only, circle dot, or just a circle. To do this all you have to do is hold down the brightness up button for a few seconds. For brightness adjustment, there is a soft touch pad on the left side of the optic with + and - labels. The PE330 has 11 brightness levels. The lowest 2 are night vision compatible, while the other 9 are daylight bright. To adjust the position of the reticle, the PE330 uses a small standard screwdriver. It also has actual clicks for adjustment, not just the turn and guess style. Each click is 1.5 MOA.

Aimwin has their auto on feature called “AIM Awake”. As one can guess, this is Aimwin’s shake awake feature. After a few minutes of not being moved, the PE330 will go into a standby mode. When movement is detected, the dot automatically turns back on at the same brightness level it was adjusted to. This feature gives more battery life to the optic. In today's red dot market, every optic should have this if it uses a battery. I am glad Aimwin includes the Aim Awake feature.

For the review, I mounted the Aimwin PE330 on a Tisas 1911 Double Stack. The window size of 23 x 16 mm worked well on this pistol. It is not the largest window, but it was very useful. I also noticed that the dot is very clear. Some of that is probably due to the glass used on the optic. I was pleasantly surprised at how clear the glass was. I couldn’t notice any color change or tint to it. Because the PE330 is a little wider than smaller RMSc red dots, it does hang over the sides of the slide. It is definitely noticeable, but does not hurt anything at all. That is a price you have to pay for a larger’ish size micro red dot on a thin 1911 slide. I don’t really care for the 1.5 MOA adjustment range. Yes it works, but I would like a finer adjustment, maybe something like a 1 MOA adjustment. With that said, I didn’t have any problems sighting in the pistol. I also haven’t had any problems with the sight itself, even with a ton of rounds being shot for the Tisas review itself.

Anyone looking for a reasonably priced, enclosed, micro red dot should go take a look at the Aimwin PE330. It uses that industry standard RMSc footprint for mounting and has a side load battery. The red dot is very clear on whatever reticle option you choose, may it be a dot or a circle. Plus it is priced right for anyone. From beginners just getting into the red dot market, or experts just needing another dot, the Aimwin PE330 might be the one you're looking for.

Firearms Insider Reviews - Key Points

Claim to Fame:

Enclosed RMSc footprint red dot with multi reticles

Target Market:

Those wanting an enclosed red dot for their pistols

Features, Benefits, and Specifications of this product:

Weight: 1.16 ounces
Dimensions: 1.61 × 1.2 × 0.98 in (40.8x30.6x25mm)
Dot Size: 3 MOA - 40 MOA
Adjustment per Click: 1.5 MOA
Windage & Elevation Travel Range: ±40 MOA, (total range 80 MOA)
Battery: CR1620
Battery Life: Medium brightness level - 20000h
Brightness Settings: 9 Daylight Levels, 2 Night Vision Levels
Window Size: 23 x 16mm(0.91" x 0.63")
Housing Material: A6061-T6
Hard-anodized
Operating Temperature: -30°C~60°C（-22°F to 140°F）
Water Resistance: IPX7
Footprint: RMS-C
Aim Awake auto on/off
Side load battery

What other aesthetic options or finishes are available?

None

What others are saying?:

5 out of 5 stars on Amazon

Great deal

I’ve tried a fair number of pistol red dots over the years, and I picked up the PE330 mainly to see how it would hold up as an enclosed optic. After putting some rounds through it, it’s been solid and predictable, which is really what I want from a handgun optic.

The enclosed emitter definitely helps when conditions aren’t perfect. Dust and debris haven’t been an issue, and the sight picture stays usable without needing constant attention. The glass looks good overall, with no distracting distortion, and once it’s zeroed, parallax hasn’t been noticeable in real shooting.

The reticle setup makes sense. The larger circle helps you find the dot faster, especially when drawing or moving between targets, while the center dot still gives you enough precision for slower, more deliberate shots. Under recoil, the dot is easy to track and comes back into view naturally, which makes follow-up shots smoother.

Battery life hasn’t been a concern thanks to the motion-activated wake feature, and I haven’t run into any random shutoffs. Mounting it on an RMSc-cut slide was quick and straightforward, and it stayed tight and held zero through multiple range sessions.

All things considered, the PE330 is an easy optic to live with. It does what it’s supposed to do, feels intuitive behind the gun, and works well for regular range use or for shooters getting comfortable with enclosed pistol optics.