So we've got this billet upper laying around...

I've been really curious about a proof research barrel, so since we are spending your money for you, I'd go with a proof research barrel in as long as they make for 223 and a fortis 16" night rail.

Build one like this.
Just pick one.

LOL @GunnyUSMC

lot of solid options right there.

Me, the last part I need is the upper reciever.

I am building a 500 yard AR for coyotes and went with:
Rainier Arms Mountain Series Cold Hammer Forged Barrel, midweight 18" barrel (was on super sale)
Odin works adjustable gas block
Odin works handguard (won at a match)
Odin works rifle gas tube
Kinetitec muzzle brake with sleeve

I do need a scope and a bolt carrier too.

You could put something like this on top.

Corpral_Agarn said:

LOL @GunnyUSMC

lot of solid options right there.

Me, the last part I need is the upper reciever.

I am building a 500 yard AR for coyotes and went with:
Rainier Arms Mountain Series Cold Hammer Forged Barrel, midweight 18" barrel (was on super sale)
Odin works adjustable gas block
Odin works handguard (won at a match)
Odin works rifle gas tube
Kinetitec muzzle brake with sleeve

I do need a scope and a bolt carrier too.

Click to expand...

Get yourself a Fail zero BCG.

GunnyUSMC said:

Get yourself a Fail zero BCG.
View attachment 891855

Click to expand...

Alright, I will.

Thanks, Gunny!

I just got one of these together. Its crazy how soft if shoots compared to a blowback 9mm.

https://cmmginc.com/product/barrel-and-bcg-kit-8-4140cm-sbn-9mm/

Corpral_Agarn said:

Alright, I will.

Thanks, Gunny!

Click to expand...

They’re on sale at Primary Arms right now for $129.
https://www.primaryarms.com/failzero-exo-coated-m16-bolt-carrier-group

I wouldn’t use it if it’s not chrome lined...

mshootnit said:

I would get a chrome lined upper receiver,

Click to expand...

Does it have to be lines? I was always more partial to graceful curves...

mshootnit said:

and not sure what to do with it. What would you build next?

Click to expand...

Okay, done ribbin’ ya.
What have you already? Looking for something new, or looking for something better? What size is the hole in the end of your biggest AR now?
Are you looking for a bullet hose or a precise bullet placer?
Are you building a lower for it or will it have to work with a previously owned one?
How far do you plan on shooting it? At what?
How far do you plan on lugging it? What is a good weight to aim for?
Price?
Anything that is a definitive "No Go”, like the Legend or another danged x39?
What don’t you have yet?
A pistol? Sidefolder? Piston? Adjustable bolt carrier gas? Glass longer than your rail?...
Do you have a red one? Or maybe a nice Oaken Brown?

Man, the possibilities are endless! It’s like a new sheet of paper, sometimes it’s hard to make the first stroke of paint! Maybe just keep it around for inspiration...

If it were mine, I would make it a 5.56 pistol to go on the lower for my Blackout pistol.

mshootnit said:

...and not sure what to do with it. What would you build next? And what parts would you use?

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What’s it for and I assume it’s finished? Some of the things I might be tempted to build would require an ejection port modification for example.

Yeah, I changed my mind.

Beowulf.

I just finished a 6.5 grendel and it looks good 24"ss barrel now waiting on the weather to dry out so we can get to our range. I've been looking closely at 450bm and 458 socom for my next build wanting something with a thump.

Gunny authorized use of other than manganese phosphate on my builds, heck he encouraged it, so I’ve been dipping a toe or two with a few since then. Started with Strike Industries then branched off to Phase 5 Weapon Systems with some Magpul and ERGO mixed in. Once you witness the Gunny’s Pallet of Pain you cannot unsee it. My recommendation; build something that’s fun in your book.

I've been wanting an upper for pig hunting that hits hard in an sbr. I've got a 16" grendel and a 9" blackout and keep looking at things like the 277 wolverine, 6.8 spc, 300 hammer, 350 legend, 358 yeti....

greyling22 said:

I've been wanting an upper for pig hunting that hits hard in an sbr. I've got a 16" grendel and a 9" blackout and keep looking at things like the 277 wolverine, 6.8 spc, 300 hammer, 350 legend, 358 yeti....

Click to expand...

I really like my 277 Wolverine. It’s already taken one hog.


I’ve got my dies and will be working up some 100 gr rounds for it this Spring.

This is my first AR build of 2020.

Upper Specs;
Anderson smooth side upper receiver
16” nitrate carbine pencil barrel with .625 gas block
15” Free Float handguard
UTG fold up front and rear sights (because I don’t trust batteries)
SIG Romeo5 Red Dot (primary sight)

BCG;
MPI and HPI nitrate

Lower;
Anderson closed ear
V Seven lightweight bolt catch
Mil- Spec magazine catch
Mil-Spec safety
Mission First Tactical Grip
Mission First Tactical Minimalist Stock
ALG QMS trigger and hammer