Commercial vs Milspec buffer tubes

[cschwanz]

http://www.brownells.com/.aspx/pid=2...OMPLETION_KITS

Other than the slight difference in size (thus needing different butt stocks) is there any REAL difference here? Trying to get things ready for a parts order and am trying to decide which way I want to go here. Im planning on a Magpul CTR for the stock if it matters (they offer both versions). Just looking for a little guidance here.

Also, would any buffer work here? Ive looked at the G&R buffer but it looks to be a "milspec" buffer. Would that only work in the Milspec tube?

[SPDGG]

MilSpec to MilSpec

Comm. to Comm.

IMHO: Buy MilSpec thats true MilSpec: LMT; CMT; & _________ [Anyone else? please fill in the other manuf.] from REPUTABLE vendors: BravoCompanyUSA; G&R Tactical , etc.

Mil Spec RE labeled MilSpec doesn't just mean Dia./Specs of OD/ID. Its also the material in which the receiver extension is made from. It may look the same, but looks are deceiving.

* 7075 is almost double the tensile strength of 6061

Originally Posted by GaryXD

Tensile strength of 6061-T6 = 45,000psi
Tensile strength of 7075-T6 = 83,000psi

fwiw/.02:
I dont see any reason to buy Comm. Stocks/RE when MilSpec offerings are the same price & available. Will, this/that work = yes, but would I want it = NO . . . . . .But...."To each their own"

* Would I use a 6061 MilSpec RE? maybe on a dedicated .22lr, as the RE serves no cycling/functioning purpose, but not on a "Real" Fighting/Training 5.56 Rifle.

Comm. = Comm. does remind me of something

[Aggie510]

Stocks tend to have a better, more secure fit on MilSpec extensions.
Additionally, there are more aftermarket stocks available for MilSpec extensions.

Adding to what SPDGG said, the way the MilSpec extensions are threaded, they are stronger at the threads.

[thopkins22]

Somehow you missed the sticky http://m4carbine.net/showthread.php?t=7009
Particularly this one...http://m4carbine.net/showthread.php?t=101

[cschwanz]

Originally Posted by thopkins22

Somehow you missed the sticky http://m4carbine.net/showthread.php?t=7009
Particularly this one...http://m4carbine.net/showthread.php?t=101

That I did, thank you so much!

Now, do we have some good recommendations for tubes/ stock kits. I suppose I can piece the parts together, but a kit would simplify things. How is the one I linked to in the first post? should I look elsewhere?

[Aggie510]

I would recommend this one here.

Your gas system length and barrel length will help determine which buffer weight to install. You can read more on buffer weights and springs at this thread.

[cschwanz]

Originally Posted by Aggie510

I would recommend this one here.

Your gas system length and barrel length will help determine which buffer weight to install. You can read more on buffer weights and springs at this thread.

That may be just the ticket! better name/reputation and a cheaper price that other things ive seen. thanks a million!

[Artiz]

Does anybody have experience with Armalite mil-spec buffer tubes?
Are they made from the proper material?