Modern Sporter - Build Discussions

[docscoutjr]

Rick, Sean, Dustin, others I have missed are all AAx2. ATRS did personally confirm that I am in for the second production run, in addition to sending invoice. This will be my second ATRS rifle and I am super stoked to be able to support this amazing company.

This thread is super helpful BTW and I hope we can collectively share the best in making these great rigs.
DL

I would think if they took your money you have a lower. These guys are first rate operators in all of my experiences with them. I am willing to bet $$ that when they get back to work, you will be recieveing an email with a copy of your invoice, that seems to be the way these guys roll.

[TeeJay]

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[scourge18a]

What is the little ball bearing and set screw that is stapled to the FRT for?

Safety- ball in the hole, cut spring to 1/4", put spring in the hole and install the grub screw in to hold it in place and set the tension on the safety.

[Suchee]

I'm on the bus! What about a light weight carrier for a 6.5 Grendel bolt? Nothing branded Brownells i could find except a full mass BCG. Great price though. Would it need a adjustable gas block or would a super light build even be appropriate with that round?
I'm building this with my little girls in mind(11 and 13), they'd only shoot it twice a year, But they dont even like the weight of my 6lb AR. I'd like to get this to 5lb. Would recoil be that much if its really light?

edited to say, I found the JP low mass, but I cant pay $350USD to save 3oz

[snowyevans]

I'm on the bus! What about a light weight carrier for a 6.5 Grendel bolt? Nothing branded Brownells i could find except a full mass BCG. Great price though. Would it need a adjustable gas block or would a super light build even be appropriate with that round?
I'm building this with my little girls in mind(11 and 13), they'd only shoot it twice a year, But they dont even like the weight of my 6lb AR. I'd like to get this to 5lb. Would recoil be that much if its really light?

edited to say, I found the JP low mass, but I cant pay $350USD to save 3oz

5 pound rifle with a 18.6" 6.5 Grendel barrel? Good luck. A 18.6" .223 pencil barrel is 1.6 pounds alone, plus 1.2 pounds for the receiver and you are more than halfway to your target weight. I just quickly calculated about 6 pounds without buying exotic lightweight parts, and that is with no sights or optics.

[Suchee]

Ambitious for sure. South of 5.5?
I'm at 6.2lb with my bushy upper/lower AR, Faxon 18" gunner, MFT minimalist stock, a Holosun and buis, good enough for the girls to plink/critters. Unfortunately they cant hold up a tooth pick.
I know I can drop 16oz easily but I need a Brigand edge forend(5oz) and a BAD Saber tube/stock will make most of the difference for me
The MRA pencil barrel is same weight as mine
I'm really interested in the SWFA Lightweight(9oz) for when I'm using it.
I just have never used a Grendel, does it shoot well/cycle reliably light?

Forgot to ask, whats the weight difference between the Sporter receiver set and my Bushy set

[snowyevans]

The Aero Precision striped receiver set is about 106 grams lighter than the Modern Sporter, or a quarter pound.

[scottcullen]

It’s made of 7075 or 6061?

[jiffx2781]

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[greg olmstead]

The Aero Precision striped receiver set is about 106 grams lighter than the Modern Sporter, or a quarter pound.

This is non restricted, Billet, precision machines not forged and did I mention non restricted