DPMS vs Armalite buffers systems

I have a DPMS AP-4

I know it uses a regular carbine length tube and a short and light buffer.

From reading prior threads, I understand armalite's have a longer than regular buffer tube with a longer and heavier buffer.
It also appears to have the same length tube as the Vltor A5 extension for AR15's.

Questions that I believe I already understand but don't want to waist money

If I get an Armalite AR10 carbine tube, I should be able to use the heavier, longer buffer correct?
The armalite AR10 carbine buffer is the same as an AR15 carbine buffer correct?

A Vltor A5 extension will also accomplish the same thing right?

Thanks

It may help to understand what your point to this is... less recoil? Using a different stock?

I don't want to spend a hundred dollars on the slash heavy buffer.

The stock dpms buffer is too light.......

The Armalite buffer is much heavier. So getting an ar10 carbine buffer and extension should work right?

By the time you get the AR10 tube, an H3 buffer and an Armalite .308 spring, it is nearly the same price as a $100 slash buffer.

I already have multiple AR15's, and being able to swap regular carbine buffers would be very nice rather than having a unique buffer in one rifle.....

adjustable gas tube maybe??????

the AR15 buffers will not work in an AR10 or LR308.

is you weapon malfunctioning with the current buffer system?

It just has a fairly hard kick.....considering my AR15's all have much heavier buffers it seems to be the logical place to start.

Get a VLTOR A5 6-pos tube for it. Then you use an AR-10 rifle length spring and AR15 carbine buffers. Mine's got an A5 tube an a Slash HSS heavy buffer. Much better than a std. carbine setup

So, does the Armalite buffer tube allow standard length carbine buffers? And will the A5 allow the same?

The A5 RE-10 6-pos requires a std.AR15 carbine-sized buffer when used on a 308 rifle..

Not sure on the Armalite tubes - I've heard they are the exact same length as an A5 tube, but don't quote me.

Call VLTOR CS or Armalite CS. Takes 3 minutes to get an answer. Don't take chances with 308 buffer setups - you can break shiz if it ain't right.

You can always tune your gas using an adjustable gas block. Many say that most all 308s are over gassed and an adjustable gas block helps to tame recoil.

I have a MEGA MA-TEN with an 18" Noveske barrel and I used an Armalite AR10 Buffer Spring, Armalite AR10 Buffer, this receiver extension and Magpul PRS Stock - AR10.

If you will be using a collapsible stock can use Slash's AR10 Carbine Buffer, any AR-15 receiver extension (no A2 fixed stock receiver extension) and any AR-15 collapsible stock.

You could use a 308 Carbine Buffer which can be used in conjunction with the DPMS 308 carbine buffer spring in standard sized AR15 buffer tubes. This combination allows you to use the AR15 buffer tube which is slightly shorter than the AR10 buffer tubes.

All true, but the VLTOR A5 is the BETTER setup and the CHEAPER setup.

Precisely what I was going for....

The Armalite AR10 buffer tube is approx. 5/8" longer than the 7" AR15 tube. If the A5 is also 7.625", then it is the correct length. I am not sure that the A5 spring and buffer will be adequate for a .308. Usually the .308 stuff is heaviery & stiffer to handle the increased loads.

Dude, read my post like 5 up.

OP, recommend going ahead and spending the 100, but use it to put the Enidine shock absorbing buffer in (link), using your current AP4 tube and spring.

Get a $40 MGI adjustable gas tube. Adjust. Done.

I built a 308 set up like an M4 with the DPMS 308-BL-AP4M barrel with the pinned fsb to accept handguards. The primary user of it in my family is recoil sensitive. I added the short enidine buffer, a pri brake, fat M4 guards, and soft Ergo grip. The drop in felt recoil was dramatic. You will be into this setup for more than $100, though, but it is well worth it - efficient compact weapon w/big punch

Well I got a Vltor A5 tube, but I am having trouble getting this DPMS castle nut off. It seems they used enough loctite that they may have well welded it

with the correct wrench i'v never had a problem removing them.
however if your having trouble try some heat to loosen it up.

from ArmaLite specs.

AR-10 carbine RE is 7-5/8” (inside depth)
AR-10 carbine buffer is 3-1/4” and weight is 5.4 oz.
AR-10 buffer spring is the same for carbine and rifle, length 14-1/8”.

The standard VltorA5 buffer weighs 5.3oz. Vltor offers two heavier weight buffers, one is the 6.1 oz and the heaviest is 6.8 oz

The A5 buffer is 4" long. If you use the A5 RE on the AR-10 you use AR15 buffer, the H3 is a close match to the AR10 buffer.



DPMS uses a AR15 RE with a sort buffer and ArmaLite uses a longer RE with a normal length buffer.

You have more choices for buffer weight with the ArmaLite AR10 RE. You could use a H3 buffer @ 5.6 oz or the standard AR10 buffer at 5.4oz. Both would be a improvement over the DPMS and well reduce felt recoil. I notice a major difference in felt recoil between the DPMS carbine and my AR10 with PRS.

There's a good FAQ in the AR10 section with lots of pic's.




AR15 (5.56) carbine buffer weights

Carbine 3.0 oz -> 3 steel weights
H buffer 3.8 oz -> 1 tungsten weight
H2 buffer 4.6 oz -> 2 tungsten weights
H3 buffer 5.6 oz -> 3 tungsten weights
ST-T2= 4.3oz.
ST-T3= 5.4oz

^ You missed a couple.

HSS Tungsten Buffer - 6.5 oz.
XH Carbine Buffer - 8.5 oz.

www.heavybuffers.com/ar15carbine

You have other choices with a standard AR15 buffer tube also - CAR-10 buffer @ 5.5 oz and CAR-10XH buffer @ 6.5 oz. www.heavybuffers.com/ar10carbine

The ArmaLite .308 carbine buffer IS a H3 AR15 buffer. Weights vary slightly in all 'H' buffers because of differences in the type of tungsten used. Different alloys of Tungsten have different densities - The cheaper the tungsten the less it weights. The worst option for any buffer is Tungsten powder, which is cheap but not well-suited for this application.

My bad!

I should have included your buffers in the list.

I'll be getting one if I ever get stared on my .308 carbine build.

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