Which upper for registered full auto lower?

[GUNENTHUSIAST]

Hey guys,

I am looking for an ar/m16 upper that has around a 16 inch barrel that will be put on a registered m16 lower. I want this to be accurate and a do everything type rifle that can be reliably shot suppressed and in full auto. I have an lwrc 11 inch piston upper on another m16 lower that is very reliable suppressed but accuracy is about 3-4 Moa. I am looking for something a lot more accurate and equally reliable for my other lower. Want to be able to hit a 12 inch plate at 500 all day while still being able to handle hight heat generated by strings of full auto fire. I don't want to wait forever either, so something in stock somewhere is a preference!

Thanks!

 

[GUNENTHUSIAST]

Re: Which upper for registered full auto lower?

If I have to go DI over piston for the accuracy so be it.

 

[jakerz3]

Re: Which upper for registered full auto lower?

I'm always a fan of building.

Grab a WOA barrel and build around that.

If you want a factory rifle, BCM makes nice complete uppers as well.

With either, I'm a fan of the battlecomp. Most of the other parts on the upper are what fits your needs. Just make sure you get a decent barrel to build your upper on. Good luck.

 

[GUNENTHUSIAST]

Re: Which upper for registered full auto lower?

I think I would rather buy something ready to go. Thanks though!

 

[jakerz3]

Re: Which upper for registered full auto lower?

If you must have something that is ready to go, I would recommend any one of the BCM uppers. Good luck.

 

[50APIT]

Re: Which upper for registered full auto lower?

For a gun that is going to see a lot of full auto use, I would recommend a noveske chrome lined upper. They have thicker chrome lining which will extend its life and have an excellent reputation for accuracy.

 

[Captain Moroni]

Re: Which upper for registered full auto lower?

What your looking for doesn't exist, full auto by its very nature inst going to be as accurate as a semi and I'm not talking about rate of fire. A full auto will toast the throat much sooner.
If you want an accurate AR build a MK12 type if you want a full auto don't expect match accuracy.
BCM does make some good stuff that will last a long time in FA use.

I have a M16 on the way and I will be building a MK18 upper for it or maybe buy one from High Caliber Sales.

 

[Temp9]

Re: Which upper for registered full auto lower?

I have to agree with the Noveske upper. It's about the closest you're gonna get to what you want.

There is no reason a full auto AR can't be accurate. But like the Captain said, full auto fire will burn out the barrel in fairly short notice. However, since you only need to maintain ~2.5moa out to 500yds, I don't see it as quite as big of a problem as trying to get match grade accuracy. Keep in mind, though, that you'll still be going through barrels faster than if you were shooting semi-auto. Of course, since you have register full autos, I'm assuming money is not an issue....

 

[bm11]

Re: Which upper for registered full auto lower?

I ended up going with a Noveske 10.5" switchblock Light Shorty. Good with the can and without. The switchblock should keep the cyclic rate down when running suppressed. Whenever the BATFE gets around to approving my form 4, that is.

 

[Grand]

Re: Which upper for registered full auto lower?

Denny @ Global Tactical use to make a combat grade 16” GTS Operator Barrel. This barrel is a 16" medium contour barrel (4150 Chrome Vanadium, full auto rated, 5.56, CLE profiled, Mike Rock blanks). The Life of an Operator barrel is supposed to be 40,000 rounds. Manufactured by (Mike Rock), and barrels were done by Frank White from Compass Lake. I have one built up with Larue components and its plenty accurate.

Not sure Denny sells them any more, but I did see Mike Rock selling some 18" SPR barrels of the same variety here recently. You could probably talk Mike into cutting one down.

18" SPR Rock Link: http://www.snipershide.com/forum/ubbthreads.php?ubb=showflat&Number=2687586&page=1

 

[dlklamfo]

Re: Which upper for registered full auto lower?

+1 for the noveske. Great quality. I'm jealous wish I could have a registered lower! enjoy!

 

[DT1]

Re: Which upper for registered full auto lower?

I was looking for exactly the same thing for the same purpose a few months back. Ended up getting one of the Bravo Company 16" uppers cm barrel w/DD rail.

I have over 2k rounds through it, many on f/a and I can still hit 10" flash targets at 500 yds with it, no problem. Rifle has a Short Dot 1.1-4 for optics. Shoots and functions great with and without SF can.

I don't abuse the barrel with f/a fire but do it enough to get my jollies.

 

[Arbiter]

Re: Which upper for registered full auto lower?

Forget the sub-MOA desires, and get a Shrike.

 

[GUNENTHUSIAST]

Re: Which upper for registered full auto lower?

Thanks for the replies guys! Looks like the Noveske or BC is the popular choice. I went on the Noveske website and there are stainless barrels and chrome lined hammer forged barrels. Any ideas how much accuracy I would loose by not going with the stainless, or how much barrel life will be affected?

 

[GUNENTHUSIAST]

Re: Which upper for registered full auto lower?

What about the BCM Mk 12 Mod 0?

 

[john2000]

Re: Which upper for registered full auto lower?

Sabre Defence may also be worth looking into...they are afaik fairly big in the rock`n roll market and deal in complete assemblies...
I have an 18" SS 1-7 twist fluted barrel that maintains about 1/2" grouping at 100 meters with decent 62-grain ball ammo. Temperature and suppressed/unsuppressed has no noticable impact on precision, however impact tend to be 1" higher suppressed.
Cannot state any wear and tear statistics as it only has about 3000 rounds through it so far.

John - out

 

[KTDLS7]

Re: Which upper for registered full auto lower?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: John lima_mike</div><div class="ubbcode-body">Sabre Defence may also be worth looking into...
John - out </div></div>
Unless things have changed, Sabre is no longer available.

Throat erosion in a FA is going to be a big concern, so invest in a gauge from Brownell's. It's not a pretty sight seeing the end result of excessive throat erosion. The upper & lower look like a case was was loaded with Bullseye powder.

Ensure you get one with all the FA internals. BTW, it may not be what you're after, but there is a complete 6920 upper in the FS section.

Kevin

 

[krg648]

Re: Which upper for registered full auto lower?

BCM or Noveske or just build your own

 

[DJ 480]

Re: Which upper for registered full auto lower?

+1 for Noveske I love mine..not only that but the cold hammer forged barrel uppers come good to go for full auto.
Cold Hammer Forged 5.56mm Barrel Made of Mil Spec M249 Machine Gun barrel steel, with heavy M249 Chrome Lining,
Extended Feed Ramps,
Auto carrier with properly staked carrier key.

so really out of the box its good to go.

this is the one I went with runs great with my AAC can on it
http://noveskerifleworks.com/cgi-bin/imc...tus=&title=

I also had basicly the same upper in stainless. The stainless you will notice the increased weight and I dunno if its the upper you want for auto usage.

good luck

 

[john2000]

Re: Which upper for registered full auto lower?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: ktdls7</div><div class="ubbcode-body">
Unless things have changed, Sabre is no longer available.
</div></div>
No shit! I have just shot the thing, but you`re right,from a quick google-search it looks like they are absolutely out of the game for a while and neckdeep in brown stuff...sorry for posting outdated info.
Too bad though, it`s a very nice piece of kit...
Typo in the first post though, it`s 1:8 twist...

John - out

 

[leadbullet]

Re: Which upper for registered full auto lower?

pretty much anyting you want, a light weight vietnam era upper would be cool or an XM177E2, because they are cheap chrome lined and good old days looking

 

[DJAG1381]

Re: Which upper for registered full auto lower?

I know a number of ppl that run the 16 inch lwrc m6 uppers on their f/a lowers. They have had good reviews of both accuracy and durability. I personally love my lwrc's but do not have f/a. Good luck.

 

[BravoSector1]

Re: Which upper for registered full auto lower?

Take a look at the FN barreled uppers at Palmetto State Armory to save some $$$. Hammer forged, double chrome lined.

 

[awonder]

Re: Which upper for registered full auto lower?

I've used BCM on a full auto lower and never had a problem with it at all.
+ 1 for them.

 

[safdtrev]

Re: Which upper for registered full auto lower?

You are going to notice a difference between a Stainless barrel and an CM barrel. Of course there are many factors that influence how much difference, I would not buy a SS barrel to use for FA. It's only money (yours) but a SS barrel on FA is going to last significantly less rounds than a quality CM barrel. I have used Noveske, Bravo Co, Centurion Arms, AR15 Performance, Rainier Arms (Shilen), and Spike's Tactical. I would use a BCM BFH if you can find one. The reason I say this is I have used quite a few Bravo Co barrels and they are very durable and they are quite accurate. The Noveske SS barrels that I have used proved to be the most accurate barrels overall but a high $$ Stainless barrel and FULL AUTO makes me nervous. I have not tried the newer offering from Spike's, they are double chrome lined FN barrels ( I am gathering parts right now for another addition and I am going to get one to try out). I would NOT use a lightweight anything for FA use. I hope this helps...

 

[LRRPF52]

Re: Which upper for registered full auto lower?

Shooting full-auto from a mag-fed carbine isn't exactly the most fun thing in the world. That changes when you reduce the cyclic rate, and get a 2rd Burst mechanism.

I would totally rule out using a 16" gun with a carbine-length gas system for startes, as that will spike your cyclic rate, especially suppressed.

The MGI RRB is a great buffer to use, and +1000 for a double chrome-lined FN or Noveske CMV barrel. Stay away from stainless for FA.

If you use short, controlled bursts, rather than pointless mag dumps, you can actually have an effective system for practical close-range accuracy, and keep your throat life/longer range accuracy up.

One approach to the 2rd burst mechanism is to have your own burst cam made for a 3rd Burst mech, which I hate with a passion, but it is one approach worth looking into, without going the HK trigger pack route.

Another route is reducing the cyclic rate down to 500-600rpm, where you can squeeze off 2rd bursts more easily.

Looking forward to how it turns out, but I'm in agreement that your accuracy life will suffer dramatically if you do mag dump after mag dump, which isn't really that cool in an AR, since you spend more time changing mags than spraying.