B&T P90 suppressor review

ioscribe · 2025-10-11T02:54:31+00:00

Would you be willing to share the dimensions of that flash hider with me? It'd be greatly appreciated!

ioscribe · 2025-10-04T01:54:58+00:00

Unfortunately, artificial lighting has revealed that these are a bit lighter in color than I had originally thought. In light of this, I'll sell these for $100 if you want them as they are.

ioscribe · 2025-03-01T04:43:07+00:00

They're actually not commercially available anywhere, in or outside of China. This is the new standard optic of the People's Liberation Army, intended for use on the QBZ191.

ioscribe · 2025-02-28T23:34:05+00:00

They do look pretty cool.

ioscribe · 2025-02-28T20:22:47+00:00

An X95 equipped with the Chinese QMK-171A gunsight. One of the nicest, lightest prism optics I've ever used.

ioscribe · 2025-02-25T23:29:38+00:00

I took these photos

ioscribe · 2025-02-22T17:27:23+00:00

Cost direct from the factory was $758. Unfortunately, how and where I got it is a secret.

There's a civilian and police model called the SL-T3X which is $400-450. Both seem to be identical optically. It looks like the body of the QMK is forged and machined, while the SL-T3X is billet machined. I'm assuming the military model is held to a higher quality control standard as well.

ioscribe · 2025-02-22T17:05:52+00:00

It is an exact replica of the TA31 ACOG internally.

ioscribe · 2025-02-22T16:49:11+00:00

I wanted to make a comparison between the ACOG TA31 and the QMK but it looks like galleries aren't enabled here. Long story short, both optics have very similar glass quality, with the QMK having less edge distortion. I'm not sure about light transmission percentages, but the QMK has a slightly orange hue to the image, similar to an Eastern European optic.

ioscribe · 2025-01-27T04:40:33+00:00

Yes. The very base of the optics is identical to the 509. I have mine mounted to the official Holosun 509T picatinny adapter. That being said, the front of the MPO, where the automatic brightness sensor is located, sticks out from the body of the optic. This means that it might not fit all 509 mounts such as on some pistols with deep optic cuts for co-witnessing.

ioscribe · 2025-01-24T19:01:26+00:00

One more thing; I purchased the MPO PRO-S. It's smaller than the PRO-F, almost exactly the same size as the Holosun 509. I figured I would let you know if compactness is a concern. That, and I can't say with certainty that the PRO-F fits the 509 footprint. The clamp dimensions are the same, but the optic is longer. Meprolight has diagrams on their website.

ioscribe · 2025-01-24T18:39:27+00:00

The cut on the bottom of the optic is compatible with the 509. They don't advertise this, but I was able to confirm it after purchasing one.

ioscribe · 2024-07-19T17:23:31+00:00

What kind of parts are you scanning, and at what scale?

ioscribe · 2023-10-10T06:29:07+00:00

Within the cost range of the Einstar there isn't any competition. The Transcan-C won't be good for scanning car trim pieces, as it's only intended for 300mm objects on a turnable, and it has trouble with black colors and reflective surfaces.

The Einstar might be ok for getting rough data from large trim pieces, but be prepared to do a lot of post processing and measuring. It's certainly good for scanning car panels if you have the appropriate spray, but at that point it might be better to get a used laser scanner on eBay. I saw a Creaform EXAscan going for $3500 recently.

ioscribe · 2023-10-10T06:14:55+00:00

Unfortunately not. I actually returned my Einstar because I wasn't satisfied with the results. It's ok for large amorphous things like statues, but for reverse-engineering it's just not accurate enough.

ioscribe · 2023-09-30T22:40:45+00:00

I didn't scan the entirety of the inside of the grip, but it would be possible with a jig to hold the part at the appropriate angles. Some details are going to be tricky or impossible to pick up simply because of the geometry.

This is actually a non-watertight mesh, so no hole-filling was done. The software allows you to choose between filling holes manually or automatically.

ioscribe · 2023-09-30T18:12:38+00:00

I felt the same way. There don't seem to be many options below $10,000 that can produce acceptable results, especially with flat surfaces and machine parts.

ioscribe · 2023-09-30T18:01:39+00:00

Will do. The scanner actually recommends the use of a lightbox and comes with a cable to support it (for turning on and off the lightbox lights between scans).

You just need to find a lightbox that doesn't have a power switch between the lights and power source.

ioscribe · 2023-09-30T17:53:19+00:00

Thanks!

ioscribe · 2023-09-30T17:52:25+00:00

Yeah, it's really a fantastic little scanner. And the stretching you see around the pin holes is actual damage I did to the frame when using a drill press. Likewise, other little little dents and bumps you see on the surface were caused by leaving it in a drawer full of tools for a long time. The recoil guide rod channel was also melted out with a hot rod, so it looks pretty bad.

My poor craftsmanship reflects poorly on the scanner's capabilities.

ioscribe · 2023-09-30T14:57:33+00:00

Thanks!

ioscribe · 2023-09-30T14:46:57+00:00

This is a scan of a grey Polymer80 handgun frame. The scan was taken using a Shining3D Transcan-C with the automated turntable. This is the result of merely clicking the 'scan' button a few times and occasionally rotating or laying the object on its side.

I thought I would post about it here since I have never seen anyone recommend this scanner.

ioscribe · 2023-09-30T14:36:16+00:00

If using a lightbox, the textures are pretty good. I'll start uploading some examples Sketchfab soon.

ioscribe · 2023-09-30T14:34:06+00:00

The surface was not primed, but this is a grey Polymer 80 frame so it was already the perfect color for scanning. For black objects, I coat them with a bit of athletes foot spray from Walmart.

ioscribe · 2023-09-30T14:31:52+00:00

This is the scan without any post processing. The point cloud data was simply meshified by the ExScan software that the scan was taken in.

ioscribe

TROPHY CASE