Lets talk 308 based builds

[mustangfreek]

You will need a .308 bolt catch and take down pins.

You can use an AR-15 Receiver extension, if you get a .308 buffer. I've used that combo without issues.

Check-308 catch and takedown/pivot pins.


the buffer thing ( as i keep researching/reading) seems to go 2 ways use a std ar15 buffer and a 308 buffer, then some say no use a dedicated 308 tube and buffer, My question is there a physical difference, like in length ?

This is where the RA Select Line fits the bill.

Lol...I thought you might say that...i have and have some select barrels and they have shot just fine...

Just curious what others to look for, I see mega makes a 16" 308 barrel. and i have the baby 556 mega barrel...

I laughed at that too.

Damnit...so did i...lol....


Gaspipe, thanks for all the info, too many quotes to re quote..lol..

[Gaspipeshooter]

Check-308 catch and takedown/pivot pins.


the buffer thing ( as i keep researching/reading) seems to go 2 ways use a std ar15 buffer and a 308 buffer, then some say no use a dedicated 308 tube and buffer, My question is there a physical difference, like in length ?



Lol...I thought you might say that...i have and have some select barrels and they have shot just fine...

Just curious what others to look for, I see mega makes a 16" 308 barrel. and i have the baby 556 mega barrel...





Damnit...so did i...lol....


Gaspipe, thanks for all the info, too many quotes to re quote..lol..

U B welcome. I was talking to one of the specialists at Brownell's last night via their chat function, because I'm looking at the Magpul PRS for a project. I have an A2 stock/tube/rifle buffer and spring set up on the parts shelf. According to him, I would need a different, heavier spring and a different buffer for .308, but the tube is the same for .308 or .223/5.56. He said the same applied to the carbine set up as well. Makes sense to me that the spring and buffer should be stouter to handle the additional punishment, and I know from browsing that JP Enterprises makes different springs for the two different calibers.

[Former11B]

On a side note, I just got a news message from Weapon Outfitters about a new upper receiver that uses a new design with it's own gas tube that get's lined up with the upper receiver. It has an adjustable gas port in the upper receiver to vent off excess gasses. This has been specifically designed apparently for switching from using a suppressor and not using a suppressor. It's an interesting and innovative idea. I want to use that upper receiver for the .300 Blackout design that I have in mind. What does hurt though is that I'd like to make that as an SBR with a suppressor. Granted I'd have to pay the tax stamp for the suppressor, but I don't want to have pay a second tax stamp for the SBR. I wonder.. since suppressors are generally around 5" long, if one is permanently attached to a barrel would that make the rifle just be a rifle since the barrel and muzzle device would be longer than 16"?

Like Tact says, I think you're talking about an Innovative Arms (made in SC about 45 mins from me) upper receiver.

I've had one for about two years now and its worth every penny. I want a second one for my SPR build.

Pics:
Outside


Unsuppressed


Suppressed


Tact, the WAR is different than an adjustable gas block. The WAR allows the gas tube to remain fully pressurized and gives the rifle a much softer feel. My 16" middy barely has any recoil ad

[mustangfreek]

gas pipe .......thought of that last nite, as what stock im running also plays into this...hummm.....and no i diont know if i want a fixed or adj. for this venture yet..

[mustangfreek]

How light do you think you can build a 16" gun? using like a med. contour barrel and say a forged aero receiver set?

Still curious to hear/see some build pics and specs/weights..

Come on fellas....Post up!!!

[Former11B]

How light do you think you can build a 16" gun? using like a med. contour barrel and say a forged aero receiver set?

Still curious to hear/see some build pics and specs/weights..

Come on fellas....Post up!!!

I know as far as barrels go, the medium contour 16 inch version of the Rainier Select barrel is only about 1.5-2 ounces lighter than the full version.

I know where I will really would save weight on mine (even though it's 5.56) is the barrel/rail combo, the optic, and the stock (go with something like the Magpul STR instead of the PRS or UBR for example).

[tact]

Like Tact says, I think you're talking about an Innovative Arms (made in SC about 45 mins from me) upper receiver.

I've had one for about two years now and its worth every penny. I want a second one for my SPR build.

Pics:
Outside


Unsuppressed


Suppressed


Tact, the WAR is different than an adjustable gas block. The WAR allows the gas tube to remain fully pressurized and gives the rifle a much softer feel. My 16" middy barely has any recoil ad

Good to know. I have one....I'm just waiting for Blowdeadline to get up and running again for some paint.

[Dstrbdmedic167]

Ohh freak I forgot I weighed mine... 9.4lbs with empty mag.

[mustangfreek]

Ohh freak I forgot I weighed mine... 9.4lbs with empty mag.

Thanks...



Former11b- Hummm not much weight difference there...

I have a B5 stock laying around, but still not sure which stock i will use., but i recently Switched the B5 from my 556 bench gun for a magpul fixed stock and i like that also for a lightweight/affordable option.

[UWone77]

You going to go with the Aero Precision Receiver Set?

Probably the most cost effective way to go...

Unless you pony up for the SI Defense Set.

[mustangfreek]

You going to go with the Aero Precision Receiver Set?

Probably the most cost effective way to go...

Unless you pony up for the SI Defense Set.

You know me..im a cheap ass slowly coming around..lol..

So without looking them up, i can remember some numbers off the top of my head

-PSA set
-Aero precison
-CMT
-RA billet set

First 2 for a set mid $200's plus transfer fee and tax, and really not even gonna consider psa for my own reasons...so aero is kinda the winner.............then it jumps up quick like 4 something for CMT and almost 6 bills for the RA set, Which is my favorite of them all, but i just wont be able to swing it..Unless i win some kick ass 308 cerakoted set like some else i know..lol......but that wont happen gingers dont win shit.......lol


Now if Mega Arms offered a 308 forged set for around the same price as the aero, then hell yes...

[DutyUse]

You going to go with the Aero Precision Receiver Set?

Probably the most cost effective way to go...

Unless you pony up for the SI Defense Set.

Ha good luck getting anything from Aero anytime soon. I ordered two "overstocked" on-sale receiver sets on Christmas Eve and when I called today was told ATLEAST 3 weeks, probably more. Putting me in a bind because I have both pistol builds finished sans the receivers

[mustangfreek]

I asked mega on their facebook page if they planned on making any 308 forged sets and they said no, also asked about BCG's...possibly was the answer or something close to, not sure who is behind the screen or if they do or dont indeed now, but would of loved a forged mega 308 set

[mustangfreek]

Bump...

So when using an aero 308 set besides their takedown/pivot pin is there any others that work?

Also mag catch?

[UWone77]

I asked mega on their facebook page if they planned on making any 308 forged sets and they said no, also asked about BCG's...possibly was the answer or something close to, not sure who is behind the screen or if they do or dont indeed now, but would of loved a forged mega 308 set

Yeah, I don't see a forged Mega .308 set happening any lifetime soon.

We keep asking them about laser engraved Mega BCG's, I think they will eventually do that. They have some other projects they're working on to bring to market.

Also, Did Aero say they only like proprietary take down pins? This is the first Iv'e heard of it.