AR-15 BS Thread

You're speaking my language. was looking into an 11.5 or 12.5" barrel. Trying to match it with the ideal rail.

 

Not sure about the 12.5" barrels, but for the 11.5", I know the KAC URX 4 and the Triarc handguards come in 10.75"

 

Sorry, I definitely phrased that poorly. I'm mostly curious about how they stack up for sound, but with the Explorr being down in the mid 130's I'm probably going to be just fine.

 

Yeah that’s what I learned really quickly

 

I learned that lesson when I had a steel case stuck in the chamber and had to buy a brass dowell rod to push it out.

 

I will consider myself lucky. Lol

 

Just finished building a MK18 Clone.

gotta ditch the optic (Vortex SPARC) though and get a real optic. It’s just on there cuz I got it with some other parts...

 

10.3" barrel?

 

Yep!

 

Sandman S looks promising. And comes with a brake to coincide with the QD system

 

Now I need a milpsec collapsible stock and I’m debating swapping the afg for a vertical.

 

Going SBR?

 

I'm biased so take this with a grain of salt and at the end of the day it's your decision.
The Xplorr 300 from Griffin is over 30% lighter, .4" longer (edit: its .4” shorter, not longer), $30 cheaper, and despite being smaller and lighter they meter very similarly. The griffin also includes a muzzle device and has no barrel length restrictions so it'd very comparable to the Sandman S.

If you like the dead air, go for it, I want too make sure you look at the numbers before you buy.

Also, I'm not sure if you have seen this video, more data=Better.
https://youtu.be/iL2Q2DIX76o

This is a good channel.
https://www.youtube.com/user/fireman1291

As is this.
https://www.youtube.com/channel/UC_x4X9FgLx-RsSSZ8e6fIFQ

 

After doing some looking at the tubeless options on the market it's hard to argue against a tubeless Sig or GA can. They're lighter and quieter for the same size, and often not much more expensive if they even are more expensive than their rivals.

 

Done been gone SBR! I guess it’s not technically an sbr yet but I have my stamp and I had the barrel laser engraved.

 

barrel or lower engraved?

 

Barrel

 

The last two I did required the lower to be serialized

 

I'm not a lawyer enough to know, but engraving the barrel might make sense. Suppressors and Autosears turn the whole firearm into an NFA item once attached and only when attached, so theoretically serializing the upper/barrel makes a bunch of sense. Whether the ATF sees it that way I don't know, but it's a really cool idea nonetheless.

 

https://www.atf.gov/firearms/firear...rms-ammunition-firearms-verification-overview

I rescind my statement about the frame being a requirement. Upper/lower/barrel are all acceptable to the AFT. Most commonly the lower is used, as it has to be visible to an inspector without disassembling the weapon.