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Posted: 12/18/2008 2:54:25 PM EST
[Last Edit: Forest]
brownells
Link Posted: 12/18/2008 4:08:15 PM EST
[#1]
Link Posted: 12/18/2008 4:11:27 PM EST
[#2]
Armalite makes 15rders also
Link Posted: 12/18/2008 4:29:10 PM EST
[Last Edit: SHIVAN] [#3]
Originally Posted By Forest:Alternate Calibers that can be loaded (with a barrel change)?  Who makes them?


.243 Winchester
.260 Remington
6.5 Creedmoor
7mm-08
.300 Remington Short Action Ultra Magnum
.338 Federal

I have no experience with this company but: http://www.ar-10-rifles.com/index.php

I am pretty sure GAP will do .260 Remington and .338 Federal without issues.

You can get barrels in .243Win from ArmaLite (special runs) and DPMS vendors directly.

300 RSAUM can be had from ArmaLite directly, special runs.
Link Posted: 12/18/2008 4:36:20 PM EST
[#4]
Discontinued 500 Phantom from Teppojutsu - Link
Link Posted: 12/18/2008 5:19:27 PM EST
[#5]
Link Posted: 12/18/2008 6:18:34 PM EST
[#6]
A few thoughts in no particular order:

DPMS also offers a 300 RSAUM as part of their regular offerings.

Don't forget CMMG also offers a DPMS compatible lower using DPMS mags and a DPMS compatible lower (with minor mods) using G3 mags.

POF 308 billet stripped lowers can be purchased from several dealors (CWS, Ranier Arms, DDs ranch come to mind).  These use DPMS mags and require a small metal sleeve to work with DPMS uppers.

JP rifles produce a side charging 308 (and 260 Rem) compatible with DPMS mags.

Accuracy Systems will make a rifle for most any round you can stuff into an AR10 or DPMS308.

Christian Hofmeister of Hofmeisters Custom Shop will make custom 308s, 260s etc. using either AR10 or DPMS receivers.

AR10/308 free float handguards:
Daniel Defense Lite Rail
SWS
JP makes one, not sure if it is sold separately

C Products also makes 19 rd DPMS compatible mags.

POF is apparently working on a 25 rd DPMS compatible mag.

American Spirit Arms produces a side charging 308 I believe.

Krieger also makes drop in barrels for both AR10 and (started recently) DPMS.  Will do 308, 243, 260.  Weren't doing 338 Fed when I ordered last month.

Iron Ridge Guns is working on a line of billet 308 lowers (not sure of compatibility yet).

Patriot Arms makes a DPMS based 308

Gun Creations builds a DPMS based rifles in 308, 243, 260, 300 RSAUM

XRing Precison Rifles builds 308, 243, 7mm-08, and 300 RSAUM rifles based on DPMS or AR10
Link Posted: 12/18/2008 6:28:21 PM EST
[#7]
Link Posted: 12/18/2008 7:50:33 PM EST
[Last Edit: SHIVAN] [#8]
LaRue makes ArmaLite pattern rails 9.0, 11.0 and 13.2...

LaRue is also coming out with their 7.62 OSR 308 AR, but LaRue/mfingar would be the source for info...

LaRue offers AR-10 specific gas blocks.

Noveske AR-10 rails are sourced from Superior Weapon Systems, but are configured differently.

Badger Ordnance and PRi both makes ArmaLite AR-10 rails.

PRi also offers their M84 Gas Buster charging handle/tac latches in AR-10 size.

Clint (aka Slash aka [email protected]) can custom manufacturer buffers in many weights for DPMS, RRA, or ArmaLite guns.  He can also make buffers that will allow you to convert to AR-15 receiver extensions for a wider selection of parts.

Surefire, YHM, AAC, Gemtech, SAS, and many other suppressor manuf's make 5/8x24tpi mounts for their 7.62 suppressors.
Link Posted: 12/18/2008 7:54:49 PM EST
[Last Edit: SHIVAN] [#9]
LWRC has a 308 SABR that is being produced. Min Data on SABR

Link Posted: 12/18/2008 7:55:16 PM EST
[#10]
Awesome idea!  I was just wondering the other day why there wasn't one.
Link Posted: 12/18/2008 8:00:20 PM EST
[#11]
Link Posted: 12/18/2008 9:13:26 PM EST
[#12]
Link Posted: 12/28/2008 12:31:20 AM EST
[#13]
SO  what I'm gathering is Armalite is the creme de le creme for .308s

my questions are as follows

Are there any .308 Rifle kits?

Is  assembly the same as the ar15?


Link Posted: 12/28/2008 12:29:41 PM EST
[#14]
This morning I woke up and decided I want a gas piston .308 in a AR type platform.  This rife will be for hunting so I want  a 20 or 24 inch barrel.

What are my options?
Link Posted: 12/28/2008 1:51:33 PM EST
[#15]
Originally Posted By Palm:
This morning I woke up and decided I want a gas piston .308 in a AR type platform.  This rife will be for hunting so I want  a 20 or 24 inch barrel.

What are my options?


Bump..thats why I want to build one

Link Posted: 12/29/2008 12:39:23 PM EST
[#16]
Link Posted: 12/30/2008 1:38:12 AM EST
[#17]
Would the dpms .308 have large or small trigger and hammer pins?  I'm thinking about upgrading the trigger group...  I did some digging on the dpms web page and nada.  Also did a search of arf.com of the last 30 days and same thing.
Link Posted: 12/30/2008 6:15:39 PM EST
[#18]
I believe the trigger pins on all current model .308 AR's is the same @ 0.154".
Link Posted: 1/1/2009 9:34:57 PM EST
[#19]
yes, ar-15 trigger (.154 pins) will fit, but I have heard that the hammer and spring were needed to be upgraded to fire hard military type primers, I think this applies to mil surp ammo, but I do not Know first hand. Using commercial ammo the standard trigger should work
Link Posted: 1/3/2009 7:23:08 PM EST
[#20]
Originally Posted By Delta4:...but I have heard that the hammer and spring were needed to be upgraded to fire hard military type primers...


No issue in my guns.  I have had an issue with the older ArmaLite AR-10 carriers narrow hammer notch vs. AR-15 wider hammer.  Never had issues with AR-15 interoperability.

Source from which you heard this?
Link Posted: 1/7/2009 1:05:15 PM EST
[Last Edit: PhrozenChild] [#21]
A CAR-15/M-4 collapsible stock buffer tube will fit an LR-308 but you need to use a Slash shortened buffer and 308 spring, or use Armalite's collapsible stock buffer, tube and spring for the AR-10 carbine.

This is incorrect, the LR-308's come with a commercial buffer tube. The buffer is a
standard carbine buffer cut down to 2.48" and one steel weight removed. The spring is
308 specific. The bolt catch and srew is also 308 specific. The only other 308 specific
parts in the lower are the take down pins, everything else (including hammer and
spring) are standard ar-15 parts. The upper does not share any ar-15 parts exept the
gas block and tube. The Armalite Ar-10 uses a slightly longer gas tube, so if you use
an Armalite barrel use the armalite tube.  Armalite Ar-10's uses a standard carbine
buffer with a slightly longer buffer tube, so if you put a milspec CTR stock on it the
buffer tube will stick out a half inch(ouch). This is why you use Slash's buffer with a
standard buffer tube on an Armalite. Slash's buffer is a drop in replacement for a
LR-308 carbine.
Link Posted: 1/11/2009 10:00:43 PM EST
[Last Edit: shrikefan] [#22]
Originally Posted By PhrozenChild:
A CAR-15/M-4 collapsible stock buffer tube will fit an LR-308 but you need to use a Slash shortened buffer and 308 spring, or use Armalite's collapsible stock buffer, tube and spring for the AR-10 carbine.

This is incorrect, the LR-308's come with a commercial buffer tube. The buffer is a
standard carbine buffer cut down to 2.48" and one steel weight removed. The spring is
308 specific.
The bolt catch and srew is also 308 specific. The only other 308 specific
parts in the lower are the take down pins, everything else (including hammer and
spring) are standard ar-15 parts. The upper does not share any ar-15 parts exept the
gas block and tube.
The Armalite Ar-10 uses a slightly longer gas tube, so if you use
an Armalite barrel use the armalite tube.  Armalite Ar-10's uses a standard carbine
buffer
with a slightly longer buffer tube, so if you put a milspec CTR stock on it the
buffer tube will stick out a half inch(ouch). This is why you use Slash's buffer with a
standard buffer tube on an Armalite. Slash's buffer is a drop in replacement for a
LR-308 carbine.


It should also be noted that a "standard" Armalite AR10 spring needs to have some coils cut off to function with the AR15 carbine buffer tube and shory buffer.

The earlier LR-308's used a standard AR15 bolt catch.

I believe the forward assist is the same as the AR15 forward assist - on models that have them.

The AR10 carbine uses a standard length AR15 carbine buffer - the AR10 standard carbine buffer is equal to an H3 AR15 carbine buffer in weight.

The depth of a standard AR15 carbine buffer tube is approx 7".
The depth af a standard AR10 carbine buffer tube is approx 7-3/4"




The AR15 mag catch will work in the AR10. They are slightly different but the AR15 model will work in the AR10.


The un-modified M14 magazines are also "supposed" to work in the AR10 without a notch for the mag catch. The mag is held into place by a tight sling.
Link Posted: 1/12/2009 8:29:17 AM EST
[Last Edit: SHIVAN] [#23]
Originally Posted By shrikefan:It should also be noted that a "standard" Armalite AR10 spring needs to have some coils cut off to function with the AR15 carbine buffer tube and shory buffer.


I've never cut any of the 4 of mine. Maybe I didn't get the memo.
Link Posted: 1/12/2009 12:05:08 PM EST
[#24]
Originally Posted By SHIVAN:
Originally Posted By shrikefan:It should also be noted that a "standard" Armalite AR10 spring needs to have some coils cut off to function with the AR15 carbine buffer tube and shory buffer.


I've never cut any of the 4 of mine. Maybe I didn't get the memo.


Slash's buffer/spring chart suggests a modified AR10 spring for this application. Calculations back up the chart's suggestions.


The factory DPMS shorty buffer is 2.500" OAL.. The Flange is .250 thick. Which leaves 2.250" for the spring to freely compress. The factory DPMS spring will stack 30 coils onto one another and the wire is .072 thick. The DPMS spring will be 2.16" when fully compressed which leaves .09" clearance.

The factory Armalite spring will stack 34 coils onto one another and the wire is .072 thick. The Armalite spring will be 2.448" when fully compressed.  The spring will be fully compressed before the buffer bottoms out on the buffer tube using a buffer that only has 2.250" for the spring to freely compress.

This probably does not apply if the spring wire dimensions differ (from round .072") such as possibly in a flat wire spring.

That is not to say that the gun won't function with the spring fully compressed onto itself before the buffer bottoms out. I can't imagine that it would be good for the life of the spring. I would also imagine that the inside of the buffer tube will start to show signs of premature wear as well.

YMMV
Link Posted: 1/12/2009 2:23:10 PM EST
[Last Edit: SHIVAN] [#25]
Originally Posted By shrikefan:YMMV


I see that I got confused by the original post you quoted and your response.  I don't mix and match DPMS gear with ArmaLite gear so I got all swimmy in the head.

A Slash ArmaLite AR-10 custom CAR-10 buffer uses the factory spring with an AR15 receiver extension.



I am out of my lane talking about DPMS carbine conversions using Slash's stuff.  Sorry.  
Link Posted: 1/12/2009 7:27:33 PM EST
[#26]
Are the AR10 and LR-308 Lower parts kits interchangable?

YES*


* The fit will not be ideal and the pins may require some polishing down to size with emory cloth. The pivot pin and the takedown pin will be too short or too long depending on which kit is used with which lower. Not the IDEAL set-up but it will work in a pinch. The bolt stop may or may not work but it is not critical for the BANG function of the gun.
Link Posted: 1/12/2009 10:12:53 PM EST
[Last Edit: shrikefan] [#27]
AR10 gas tube over all lengths:

AR10 Carbine (midlength) 12-1/16"

AR10 Rifle 15-9/16"
Link Posted: 1/13/2009 12:23:55 AM EST
[Last Edit: sysops666] [#28]
enidine makes buffers for 308 series rifles. and a short one for use with an ar15 carbine buffer tube. just thought i'd throw it out there.

eta: JP Also makes a light carrier that takes a dpms bolt and parts but works in ar10's as well. this setup is going in my ar10t!
Link Posted: 3/1/2009 8:46:01 PM EST
[#29]
Hi Guys:

I am having a little adventure with my installer regarding the RR LAR-8 and the Daniels Defense Rail .  The LAR-8 is essentially an improved version of the Bushmaster BAR-10.  I need to take off the barrel in order to install the rail.  My questions are these:

1.  Will as AR10 receiver JIG from Brownell's hold the the LAR-8 receiver?  I'm not sure, but I think that the LAR-8 receiver may be a bit longer.
2.  Will the standard AR15 barrel wrench take off the barrel?
3.  If the standard AR15 barrel wrench will not work, will the AR10 barrel wrench take off the barrel on the LAR-8.  Again I am looking to see if there may be compatability issues.

Thank you!
Link Posted: 3/14/2009 7:47:22 PM EST
[#30]
in relation to partch interchangeability between 15's & 10's, is there a differece between the ambidextrous selictor assemblies of the 2?

in theory or actuality, can I simply use the "ambidextrous conversoin" marketed for an ar15 in my ar10 without any problems?
Link Posted: 3/16/2009 5:46:53 PM EST
[#31]
I didn't see it listed but I held (and didn't want to give it back) an LMT MRP-type .308 at the SHOT show.
It was like a slightly upsized MRP; I didn't realize exactly what was different when I was first handed the rifle.
I love the MRP platform.
I have my name in the hat for one of the .308's when they are generally available, which should be about now.
Link Posted: 4/8/2009 9:54:45 AM EST
[Last Edit: captrichardson] [#32]
I had posted this in another topic, I guess it would make sense to add it here.


This one gets thrown out pretty frequently, so I figured I would post this to try and help out.

Magpul offers 2 models of the PRS stock, one for .223 rifles and one for .308 rifles.

For the most part these 2 models are the same. They both use a standard "AR rifle length" buffer tube / receiver extension. The adjustments for the Length-of-Pull and the Cheek Rest are the same.

The major difference between the 2 models is the size / length of the Cheek Rest. The .308 model has a shorter / smaller cheek rest, this is to allow for the longer length-of-pull with the .308 charging handle.

Based on this difference, you could use either model on a .223 rifle, but you cannot use the .223 model on a .308 because if you raise the cheek rest, you will not be able to pull the charging handle far enough to the rear.


I have had problems finding the .308 model and they always seemed to be higher priced, so I came up with a plan to modify the .223 model. Basically all I did was trim off the front end of the cheek rest.

In the pic below, TOP - .223 Model Modified to fit .308, MIDDLE - Factory .308 Model, BOTTOM - Factory .223 Model



In the pic below, TOP - Factory .223 Model, MIDDLE - .223 Model Modified to fit .308, BOTTOM - Factory .308 Model


I trimmed 0.55 inches off of the front of the cheek rest with a Hack Saw.

Doing so will leave a small gap where the buffer tube / receiver extension will be exposed. This may not look the best, but it works perfectly fine.

Hopefully that all makes sense, best of luck,
Capt Richardson

EDIT/ADDITION - to trim the material off, just raise the cheekrest to its highest point and trim/cut from the top down. There is no need to take anything apart. Just watch as you cut down that you don't hit/damage the buffer tube.
Link Posted: 4/8/2009 8:33:19 PM EST
[#33]
Originally Posted By minsane:
Hi Guys:

I am having a little adventure with my installer regarding the RR LAR-8 and the Daniels Defense Rail .  The LAR-8 is essentially an improved version of the Bushmaster BAR-10.  I need to take off the barrel in order to install the rail.  My questions are these:

1.  Will as AR10 receiver JIG from Brownell's hold the the LAR-8 receiver?  I'm not sure, but I think that the LAR-8 receiver may be a bit longer. i used  it but trimmed it to fit
2.  Will the standard AR15 barrel wrench take off the barrel? yes
3.  If the standard AR15 barrel wrench will not work, will the AR10 barrel wrench take off the barrel on the LAR-8.  Again I am looking to see if there may be compatability issues. not needed

Thank you!


troy industries 308 rail fits the RR LAR 8 with no problems.  It uses the oringnal barral nut in th installation of the rail.
Link Posted: 4/8/2009 10:01:36 PM EST
[#34]
POF 308 lowers use a standard ar15 LPK. They come with the parts that are specific to the POF 308 lower EXCEPT the sleeves to adapt the .250 pins to the .272? holes in the DPMS uppers.
Link Posted: 4/15/2009 5:35:25 PM EST
[#35]
I'm guessing that barrels are fully interchangeable?
Link Posted: 4/30/2009 8:11:34 AM EST
[#36]
Rock River Arms states on their website that the Magpul PRS will not work on an LAR-8 due to interference with the cheek rest.  I put a Magpul PRS on my LAR-8 and the interference between the charging handle and the cheek rest is only about 3/8".  If you followed captrichardson's advice above, you can trim just a small amount off the cheek rest and use the stock on your LAR-8.  Below are some pictures I took of the overlap between the charging handle at max extension and the cheek rest.





Also, just for kicks I decided to try and see if my LAR-8 upper would fit on my DPMS LR-308 lower - it's a no-go.  With the front pivot pin lined up, the lug in the upper for the rear takedown pin hits the lower and will not allow it to close.

Link Posted: 4/30/2009 11:27:34 AM EST
[#37]
Originally Posted By Shadowhawk:
I'm guessing that barrels are fully interchangeable?


A member posted a pic of what was said to be a BM/RRA 308 barrel and it did not have feed ramps as in 2 it had the whole bottom of the barrel extension removed and was like one big wide chute.

Link Posted: 4/30/2009 12:07:20 PM EST
[#38]
Originally Posted By shrikefan:
Originally Posted By Shadowhawk:
I'm guessing that barrels are fully interchangeable?


A member posted a pic of what was said to be a BM/RRA 308 barrel and it did not have feed ramps as in 2 it had the whole bottom of the barrel extension removed and was like one big wide chute.



I can confirm that there is one large feed ramp on my LAR-8 and not two individual ones.
Link Posted: 5/2/2009 3:47:03 PM EST
[#39]
KAC SR-25's also come in a 24' barrel
Link Posted: 5/27/2009 10:49:29 AM EST
[#40]
are ar10 dpms and sr25 bolt carriers interchangeable? Are the bolts? are the free float tubes?  Need to know what will work.
Link Posted: 5/30/2009 2:21:59 AM EST
[#41]
Just to make clear (cause I'm workin' on somethin' here).

1)  DPMS/Model 1 Sales/Armalite bolts and carriers all the same?

2) Armalite and DPMS barrels are same (interchangleable)?

I ask because I like mid length Armalite barrel but will be putting down on CMMG lower (HK mag).


Thanks!
Link Posted: 6/14/2009 11:25:09 PM EST
[#42]
Originally Posted By Forest:
Come on guys, I need some help here.

do you have any other questions that should be covered?


Armalite used to make an upper that would fit a Stoner SR25 lower.
What were the changes, and can you make one fit now?
What about the DPMS upper?
Can the DPMS upper be fit to the Armalite lower with a little grinding on the radius at the back of the upper. Can it be fit to the Stoner SR25 the same way?

Thanks

Link Posted: 6/19/2009 2:36:36 PM EST
[#43]
I don't want to stir up a hornet's nest but which .308 AR's have preformed right out of the box and which ones have needed work.

I would like a simple flattop I could scope & use out to about 400 yards. Mainly for Elk hunting and target practice.
Link Posted: 6/22/2009 8:32:30 AM EST
[#44]
Originally Posted By SS109:
I don't want to stir up a hornet's nest but which .308 AR's have preformed right out of the box and which ones have needed work.

I would like a simple flattop I could scope & use out to about 400 yards. Mainly for Elk hunting and target practice.


My RRA LAR-8 Varmint performed right out of the box.  I slapped a scope on it, dialed it in, and even I could should <1 MOA @ 100 yds.  I have yet to push out the distance...
Link Posted: 6/23/2009 10:52:55 AM EST
[#45]
LMT will be producing a .308 MRP, targeted for Jan 2010 availability. It will have user-changeable barrels, just like the 5.56 MRP.

Pics here: http://www.m4carbine.net/showthread.php?p=395243#post395243 (link not hot because we're not supposed to link to there from here, or so I understand).
Link Posted: 7/20/2009 9:09:30 PM EST
[#46]
Ok guys, new to the forum and first post so be gentle. I've got a DPMS LAR 308 and would like to replace the bolt and bolt carrier. My initial investigation has led me to believe that I dont have too many options. JP didn't seem to fit. I've looked at some of the other manufacturers mentioned here and don't seem to find a fit.
Link Posted: 7/20/2009 9:25:32 PM EST
[#47]
Dibs on your "old" BCG.

What is it that you do not like about it?

Welcome
Link Posted: 7/21/2009 3:56:00 PM EST
[#48]
Haha; well I just might keep it for spares.  I've had some extraction issues, and I'm just hoping to improve the reliability.  I might be jumping the gun (pun intended) a bit.  I might just need to run more rounds through it to see if reliabilty smooths out.
Link Posted: 7/21/2009 4:17:44 PM EST
[#49]
Originally Posted By RAM1:
Haha; well I just might keep it for spares.  I've had some extraction issues, and I'm just hoping to improve the reliability.  I might be jumping the gun (pun intended) a bit.  I might just need to run more rounds through it to see if reliabilty smooths out.


Tearing the the rim off or not holding onto the rim?
Link Posted: 7/22/2009 1:33:19 PM EST
[#50]
Not holding onto the rim.
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