RacerX

It's a .410 bore(which is 67.5ga), not a 410 gauge. That's what I was referring to. A 410 gauge would be super tiny but fun to make.

LOL - I know what you really meant to say, but I was just thinking to myself, "It would be fun to make a little shotgun that was actually 410 gauge." Wire size drill bit to create the barrel?

I also clicked on this thread thinking it was going to be about haircuts and barbers. 😆

I'll add something to this. Even if they have a physical address, if it's a questionable company I will look at the Google street view of the address. It may show up as Bill's Candy Shop, some warehouse with no signage, an abandoned house, etc.

It's the photo he posted above, but converted to a proper image format.

Fixed it for the OP.

Here's a tip for getting a more accurate gas port measurement. If you have a Harbor Freight nearby, go pick up one of these: Numbered drill bit set They're not great drills, but they make for handy measuring tools. You can then use this chart to convert the numbered sizes to inch sizes.

I'm not sure where you are in Ohio, but here's a list of ranges in Michigan. There's even a couple of 600 yard ranges up north, possibly a good place to do a combination cabin rental/shooting fun time. Shooting ranges in Michigan Map of Michigan counties

I used them in my last 2 (did 2 at the same time) builds. They definitely work, but they are actually 5.1 ounces, not 5.3 as advertised. The one from heavybuffers is 5.5 ounces. I wonder how much difference there is with .4 ounces. I wish I would have had both to compare at the time.

But nothing weirder than your french fry fingers. Girl, what's up with that?!?

Tools, let's see... a small punch, a brass or nylon hammer. You might need a really small (I forget what size) allen wrench for your bolt release(some use a pin, some use an allen screw). Another ARFCOM guide

Here's a whole bunch of things I bookmarked when I first started doing AR-15 style rifles. The LR-308 lower is essentially the same method. ARFCOM guide Vimeo how-to video PSA video There used to be a bunch of YouTube videos, but it looks like YouTube took them all down.

Never mind - I just saw the other thread, which also has better photos so I see what you noticed. Too far back, in case anyone else is wondering.

What would you change?

I found it in the blog. I guess they just forgot to put it on the front page like usual. Link to Primary Arms contest

Are you sure this is legitimate? Primary Arms always has their giveaways in the scrolling banner on their website, and unless I missed it, there's nothing referencing this there.

Most forum software has a timeout for posting. Tip for all: If you think you are going to be typing out a long post, it can be helpful to type it in your word processor first, then copy and paste it into the forum when you are ready.

MFI is where all the fun is...

Measure from one end of the gas tube to the other. If it's all assembled, just measure from the open end of the tube to the gas block and make an educated guess at the amount (probably ~1/2") inside the gas block. According to my notes (I've only assembled rifle-length systems) a mid-length would be 12-1/16" but I will leave it to @98Z5V to confirm. Rifle length would be 15-1/2". It's a big enough difference that it should be obvious without having to get the exact tube length measurement. For lack of a better way of saying it, I will say, "Everything affects everything else." All the parts(and gas port) need to be in harmony with the others in order for everything to work together. Oh, also - a photo of your failure to eject may be helpful to see what's happening.

I was just re-scanning your specs and came across this. I confirmed that their website says it is mid-length as well. But... I didn't see above where you took an actual measurement. You might want to double check that and post it here. Maybe it's actually rifle-length.

Just going along with the current theme... Normally I would have some C23 to include in the photo, but I don't have any in the shop right now.

Just be glad he didn't squirt something on the windshield and then ask for money to clean it off.

It is. It was in the news last week. There's some great responses shown in this article: The troll gets trolled

Well, mistakes do happen and I've done a few builds with Ballistic Advantage barrels now, with no issue. Both of these barrels were ordered at the same time, so presumably they were part of the same batch. Based on the gas port size they had (0.086") I would almost bet that someone was previously drilling/reaming mid-length barrels and forgot to change the bit when switching to rifle length. I just chalked it up to a good lesson. I will always measure the gas port from now on, before assembling.