Hey, just a quick word of advise. You may want to put a strap on that forend. My Mossberg came with a similar setup and can be kinda slick especially in a stress situation. Here's a link to the one I installed. It comes with the necessary screws and a drilling template. It's just 4 small holes and it helps immeasurably. It's only about 12-13 bucks.
I'm not sure who came up with the idea first, but Boris came up with the simplest and cheapest process. If you already have a AR15 lower, you can make 8 receivers (if you don't fuck up the mold) for $50 on amazon vs $300 for a kit.
I think it’s a 1/4 inch rib width I would double check first
Thingiverse has several variants of the Lack Table enclosure. I built this one and am very happy with it.
https://cults3d.com/en/3d-model/tool/original-prusa-i3-mk3-enclosure-ikea-lack-table-prusa-research
TRONXY X5SA Large-Size DIY kit high-Precision Industrial-Grade Home 3D Printer, Silent Pulley, Material Break Detection, one-Key Leveling Automatic Leveler, bidirectional Fan https://www.amazon.com/dp/B07WSN8FY3/ref=cm_sw_r_cp_api_glc_fabc_cPZcGb91113PW?_encoding=UTF8&psc=1
Complex shapes: https://imgur.com/a/3kEWu Drilling: https://photos.google.com/share/AF1QipMhZZcyc1QJHKUq5ODILXlpTX-bJtq-6-anjJWe1-nz5RtjoEzZ84a3pARkKjgiuw?key=c1NHcWVXSnMwN3lfYkRueC01SWNCQjhoQjJPU1hB
There's a bit of work on these... An AR15 bolt and barrel extension would be very cool.
https://www.amazon.com/Keter-Folding-Workbench-Sawhorse-Capacity/dp/B001CWX26Y
100$ but solid/strong and very stable, cut some alu composite (the stuff you put on the wall over your kitchen-bench) to size and glued it to the top on mine and it is probably better than your typical permanent bench made from 2x4's....
This book used to be a good source of info
https://www.amazon.com/Homemade-Guns-Ammo-Ronald-Brown/dp/158160677X
But now it's $165. I bought a copy at least a decade ago, it's a good read. Tells you how to make a hammer-fired single shot shotgun plus includes variations for various calibers. It also talks about how to make crude gunpowder.
> Priline Polycarbonate
There's a carbon fiber PC, and then just a PC. I've been looking for something stronger for some interior car parts (cup holders/cell phone mounts) that could survive a hot car in the summer but also hold up to some physical abuse as well.
Was going to build a new printer with an all metal hotend and go full PC, but this may be a more affordable alternative.
Maybe something like this? Not permanent and could easily mount.
lanhe tactical Truck Gun Rack Automotive Car Seat Back Organizer Storage Rifle Shotgun Seatback Holder Fits Vehicle Pickup SUV and more https://www.amazon.com/dp/B08V9DLSJ7/ref=cm_sw_r_apan_glt_fabc_76D4A8TBDVZM3S47FZVZ?_encoding=UTF8&psc=1
No, I'm not affiliated.
The lesson to learn from those videos, is that using the weakest powder shot is probably preferred, as the diabolo shape does not lend itself well to supersonic speeds.
Alternatively there are some super heavy 22 pellets that are more in line with a traditional bullet shape, kind of like these
JSB Diabolo Exact .22 Caliber Air Gun Pellets https://www.amazon.com/dp/B01JP7PQXY/ref=cm_sw_r_apan_glt_fabc_6N2XHKYZP57MND1RGJ4J?psc=1
They will not only slow down the velocity, but they will allow you to use a stronger powder charge to tailor it.
The 15 grains that a standard air rifle shoots, is close to a third of the weight of a standard 22LR bullet, couple that with being over driven by too much powder, and I can see why they could be inaccurate at best, or break up.
Iirc he was getting close to 5.56 velocities
I've got something for you, I need a counterweight/battery container for that conforms to the rear of a helmet. Something to fit in the back pouch of this, I'm guessing around 3.5"Lx1.5"Wx2.5"H that can hold at least x4 AA batteries and x4 CR123 (hopefully). This is my attempt, but it doesn't quite fit horizontally, and I'd like it to be concaved to form fit the back of a team wendy exfil. It also sucks to open, the batteries provide a bit too much friction and the latches snap off almost instantly.
lemme know if you've got time for it! Thanks!
I went with 9902, I think. See this:
https://www.amazon.com/Dremel-9902-Tungsten-Carbide-Cutter/dp/B00004UDJK/
Of course the barrel must be already pressed, otherwise there's no way to make sure holes match in the trunion and barrel. If you clamp the very tail of the cutter into the dremel's collet, there's just enough reach to get to the barrel through the hole in the trunion.
I've gone through a lot of this: https://www.amazon.com/gp/product/B083586NGW/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
My last order came with a spool. This filament has made a lot of nice glock lowers for me.
Siraya Tech Blu and Siraya Tech Tenacious.
Blu (1kg) - Strong and Precise High Resolution 3D Printing Resin (Emerald Blue) https://smile.amazon.com/dp/B089SLXDFH/ref=cm_sw_r_cp_api_glt_fabc_FSJCFFXWVSGEEHWJMEBY?psc=1
https://www.amazon.ca/Hatchers-Notebook-Ballisticians-Historians-Collectors/dp/1614272832
Hatcher's Notebook is excellent.