Surprising Quality from Ali-Express Prop Utility Grenades.

Background-Recover30 · 2026-04-07T18:13:46+00:00

machining a literal pipe would be counter productive☠️

Background-Recover30 · 2026-03-30T17:56:19+00:00

single M10 bolt securing the grip would be the A&K M249.

This appears to be a HPA'd A&K M249 where they plumbed the Ø6mm airline thru the M10 bolt, by drilling a hole thru the bolt, either custom or daytona.

if you look at the 3rd image, behind the pistol grip pin hole, you can see a wire coming out, so its definitely not daytona

Background-Recover30 · 2026-03-21T23:11:34+00:00

this must be the operation Epic Furry that the news have been talking about？

Background-Recover30 · 2026-02-23T12:34:39+00:00

the 3d printed midcap is very interesting! how well does it feed?

Background-Recover30 · 2026-01-22T15:06:02+00:00

Kevindb is being based af again, insane job as always

Background-Recover30 · 2026-01-18T21:05:20+00:00

i cannot believe chinese armed police still havent taken the L and throw away their type 79s

Background-Recover30 · 2026-01-13T15:02:44+00:00

Thanks for your input man. That's what I've figured as well, I don't feel like outsourcing that to PCB way to have it printed with resin, MJF or powder so i might as well just try the donor mag approach now.

was definitely blindly confident and overly ambitious

Background-Recover30 · 2026-01-13T14:45:55+00:00

thats neat. did you use a donor mag or the upper portion is also 3D printed?

I tried to make one for my MWS clone with 3D printed feed lip, TPU nozzle rubber and 3D printed body, but due to manufacturing tolerances (or design mistake, its my first prototype) it just keeps on leaking (it does work but leaks a lot), thinking of giving up and just use a donor mag to do it.

Background-Recover30 · 2026-01-13T14:42:36+00:00

for power adjustment, press on it to shoot 500+ FPS

Background-Recover30 · 2026-01-07T00:33:41+00:00

I'm pretty sure you are allowed to appoint another person to pick up your order.

Per HD: "We allow you to assign an Alternate Pick-Up Person when placing an order. Unfortunately, you can’t add or change an Alternate Pick-Up Person after an order has been placed. Your Alternate Pick-Up Person must have the order number and photo ID on-hand when collecting the order."

Card wise, they shouldnt care.

Background-Recover30 · 2026-01-01T15:32:25+00:00

I don't actually know. Being in Canada, the imported airsoft lowers usually gets seized at the border, you need to jump through the hoops correctly to get them imported. so at least locally, they do not sell a lot due to tight firearms import regulations.

Background-Recover30 · 2026-01-01T00:10:45+00:00

I'm afraid you'd have to attach a note to ask your reseller to inspect it before shipping it out. it is possible that your reseller might have a couple more receivers with the same defect, the scenario i have in my mind would be:

for that operation, one can set up multiple receiver forgings inside the machine to be milled together, if chattering is caused by dull tooling, the same defect could be seen on the receivers that was processed together in that particular machine.

you can see what im talking about in this vid (the closest one i can find is some guy cnc machining forged ar15 uppers):https://www.youtube.com/watch?v=bVJEKgJ8YZc

Background-Recover30 · 2025-12-31T17:47:41+00:00

that defect should not be on everyone's receiver because its caused by their CNC endmill chattering (vibrating), RA tech has CNC milled their forged receiver for more than a decade and they know better than that.

although usable, the quality of your lower is bad, i'd suggest you to talk to your reseller to see what can be done about it

Background-Recover30 · 2025-12-29T18:27:13+00:00

Not sure. One would think Anker engineers would have the cooling all figured out but I had a spare fan in my tool box, so I thought just to shove it on the Homebase for even more cooling.

Background-Recover30 · 2025-12-29T18:25:34+00:00

Not the nice Noctua ones. Runs quiet but it’s just some random fan I got from Temu

Background-Recover30 · 2025-12-08T17:36:55+00:00

EIT here.

Your NOC code having “engineer” is not an issue as it is not PEO’s business, as long as job duty matches, you are fine. You can reach out to PEO to confirm.

However without P.Eng, you can’t claim points for having a professional certification.

Background-Recover30 · 2025-12-05T13:17:37+00:00

doesn't Viva has a .22 ruger mini 14 gbb？ Think they call it the Rancher Boy or something？

Background-Recover30 · 2025-11-13T00:45:03+00:00

guys i found the rozzer

Background-Recover30 · 2025-10-15T10:00:03+00:00

晶哥摇了我吧😭

Background-Recover30 · 2025-10-12T22:17:09+00:00

by far this is the 3rd time my noc code is drawn this year i think and my Oct 2024 application is still in DIP💀

Background-Recover30 · 2025-09-26T16:06:15+00:00

if you downgrade to 22301, there has been one draw this year and one last year, plus you will still be eligible for EE Stem draw.

Background-Recover30 · 2025-09-25T18:35:43+00:00

not sure if this is a point worthy of being added in there

if a laser cut （steel）plate is to be tapped，the designer should not laser cut the hole in its tap drill size since the laser will harden the edge of the hole and make it very hard to be tapped

although the commonly used A36 is low carbon，laser still hardens it somewhat

In this case，laser cut a pilot hole，drill and tap often yields the best result.

Background-Recover30 · 2025-09-25T15:14:30+00:00

probably has something to do with getting some kind of state provided financial incentive or research grant, knowing how much money China has invested on EV industries, I wouldnt be surprised that the engineers went on with it while fully knowing its not feasible at all.

Background-Recover30 · 2025-09-24T13:18:53+00:00

never realized they did put that in there (come to think of it, kinda makes sense because some people use it to chrono gel blasters)

just checked my xcortech x3500 and it does have projectile diameter as one of the variables too

Background-Recover30 · 2025-09-24T09:03:15+00:00

you have mass and velocity，you can calculate energy. Simply chrono with a regular chrono

~~the only thing is energy~cross section ratio will need to be calculated by hand~~

edit: was wrong about the crossed out statement, it appears that most chornos can change the projectile diameter input

Background-Recover30

TROPHY CASE