User Panel
Posted: 8/1/2003 9:00:08 PM EDT
Which would you prefer?
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The dissipator is ugly. SO I go with midlength.
If I wanted the sight radius of a 20 incher, i'd buy a 20 incher. [edited for type] |
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The dissapator is nice for sight radius, but it doesn't uses an M4 gas system, and it can't use the bayonette. Plus, it would make the handgaurd unecessarily long and heavy if you were trying to have the LW rifle.
But, I hear you cant' mount a bayonette to a midlegnth upper anyway. I dunno, I am trying to figure this out myself. |
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M-4gery, afterall you couldn't have a dissipator or mid-length with your name? [;)]
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Dissi. would be my first choice, but I can also see myself with a mid length one day too.
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The mid just looks right... then again, no one here cares what their rig looks like!
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my only (so far) AR is a RRA mid-lenghth flat top, and i love it.
[url]http://www.fototime.com/ftweb/bin/ft.dll/detailfs?userid={2394B0ED-2626-4BC0-AD60-2C3B6046F572}&ndx=0&slideshow=0&AlbumId={25690A7F-1720-4B3F-9F16-2E60327BC1E3}&GroupId=&screenheight=864[/url] |
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Dissipator is what I own, longer sight radius plus the shorter, easier to handle length made it a perfect all-around rifle in my book. The extra weight fron the longer handguard is relatively minimal since it is narrower than the typical M4-sized ones as well. It does have an "extra" gas block under the forearm, but that as well is of minimal weight.
And unlike 20iner, I think it's one of the best looking AR's around. That's the inherent beauty of these rifles though, there's one for everyone. |
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I'm seriously considering building an Armalite mid-length upper on one of my Mega lowers for my next, next project.
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mid-length, the longer gas system is better...smoother cycling with increased reliability.
A lightwieght dissipator might interest me...but the M4 profile barrel dissipator seems silly. maybe if they left off the 203 cut it might make sense. |
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Actually, I'd prefer something very different --the AT LTD gas trap design (ala COMPAK-16) on a 16" or 18" polygonal bore, progessive gain twist -- in 6.8mm x 43. Starting now to piece the beast together.
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[img]http://www.imagestation.com/picture/sraid74/p263792d55ee003f2aeb34d8dc16728d4/fb62d0e4.jpg[/img]
[img]http://www.imagestation.com/picture/sraid75/p38db7af7f67e16311f8258436b93f356/fb570a04.jpg[/img] |
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Hawkeye,
Very nice! Your wood flooring and carpet match perfectly! Oh, and the rifle looks good, too. [;)] |
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Hawk, that rifle is a beauty .
I do how ever prefer the mid since it has a more reliable gas system then the dissy whichis still using the M4 gas system with a longer sight radius. with the Mid, you get a smoother gas flow and also you increased the sight radius somewhat, the mid length URX is my next project, or is it the 6.8 SPR?? I am confused. |
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Quoted: Hawk, that rifle is a beauty . I do how ever prefer the mid since it has a more reliable gas system then the dissy whichis still using the M4 gas system with a longer sight radius. with the Mid, you get a smoother gas flow and also you increased the sight radius somewhat, the mid length URX is my next project, or is it the 6.8 SPR?? I am confused. View Quote Thanks. I am thinking of going to a PRI fat boy just to experiment with. I too have been contemplating a Mid-length setup myself, especially with the new mid length SIR. As well as an SPR. Although, someone keeps teasing me, and telling me to not spend any more money for a few more months.....I hate suspense and waiting.. [banghead] |
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To those of you that say the Dissy is unreliable, you do understand that there's a second "bastard" sight tower/gas block under the handguards in the standard sight location of all the other carbines right? No flame intended, but alot of folks have never seen the handguards off the Dissy and therefore think that the gas is being routed from the sight post that you see.
[img]http://www.bushmaster.com/shopping/barrel-assemblies/Images/abbl-16da.jpg[/img] |
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and if the length of the gas tube is an issue, just get a carbine length pigtail (makes the length of tubing equivalent to a standard gas tube). Problem solved and you still have the full sight plane to boot. Dissy all the way.
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Quoted: Actually, I'd prefer something very different --the AT LTD gas trap design (ala COMPAK-16) on a 16" or 18" polygonal bore, progessive gain twist -- in 6.8mm x 43. Starting now to piece the beast together. View Quote Where were you able to find a source for gain twist polygonal barrels? I have been looking for some time now! I prefer a mix of both, a dissy type setup with a mid-length gas system, the one on the top in this pic is such a critter. [img]www.gunzilla.com/images/dualing_uppers.jpg[/img] |
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I put together a post-ban M4 Dissy with an A1 upper and furniture. Nice and light.
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Quoted: To those of you that say the Dissy is unreliable, you do understand that there's a second "bastard" sight tower/gas block under the handguards in the standard sight location of all the other carbines right? No flame intended, but alot of folks have never seen the handguards off the Dissy and therefore think that the gas is being routed from the sight post that you see. [url]http://www.bushmaster.com/shopping/barrel-assemblies/Images/abbl-16da.jpg[/url] View Quote Earlier dissipator style guns had a full length 20" gas system that caused reliabilty problems for not eough back pressure to make the action cycle....I think this is where the root of the confusion lies. |
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Another option is to have a 20" cut to 16" and have the gas port opened up.
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Quoted: Quoted: To those of you that say the Dissy is unreliable, you do understand that there's a second "bastard" sight tower/gas block under the handguards in the standard sight location of all the other carbines right? No flame intended, but alot of folks have never seen the handguards off the Dissy and therefore think that the gas is being routed from the sight post that you see. [url]http://www.bushmaster.com/shopping/barrel-assemblies/Images/abbl-16da.jpg[/url] View Quote Earlier dissipator style guns had a full length 20" gas system that caused reliabilty problems for not eough back pressure to make the action cycle....I think this is where the root of the confusion lies. View Quote I agree. Isn't this how Olympic still makes theirs? I think they call it the Eliminator. |
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Yep, the dissy is just as reliable as a 16" carbine....heck they have the same gas system...just low profile and under a standard handguard.
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Quoted: Another option is to have a 20" cut to 16" and have the gas port opened up. View Quote Exactly. I had Kurt cut down a 1:7 A2 barrel, so I have a super-lightweight Dissipator. With the gas port opened up to .110", it runs like a top. -Troy |
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Troy,
I'm curious, how does this rifle feel versus a regular 16" carbine? I understand opening up the gas port to make it cycle more reliably, but are there any drawbacks to this, like more wear on bolt/carrier/upper? Weight is one of the drawbacks to the BM method, so yours is an interesting option. |
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It's great. While it is fairly light, the weight it does have is at the front of the barrel, which helps it balance and helps keep the muzzle on target. Otherwise, it works great, and has the benefit of NOT having the carbine gas system, so it cycles nice and gentle like a 20" rifle. I'm very happy with it.
-Troy |
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Quoted: But, I hear you cant' mount a bayonette to a midlegnth upper anyway. View Quote www.prebanarms.com sells a bayonet which will work. |
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Quoted: Quoted: But, I hear you cant' mount a bayonette to a midlegnth upper anyway. View Quote www.prebanarms.com sells a bayonet which will work. View Quote For some funny reason the ability to mount a bayonet on a weapon has never played the least bit into my consideration of whether I should purchase it. |
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I know. A bayonet has never crossed my mind either. Is it just because it is a banned feature that so many people are on this bayonet kickor is it nostalgia for boot camp/basic training? I'd rather have the blade in my hand than to have to use my rifle as a pole arm as a rifle is a poor substitute for a real pole arm.
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I just wish that someone would make a chrome lined lightweight or government weight midlength. Armalite doesn't show a midlength barrel on their site when you look in the parts catalog, unless I'm just missing it.
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I noticed also that the RRA & Armalite midlengths are both postban configured. Anyone have a preban version, and how did you get it?
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Quoted: I just wish that someone would make a chrome lined lightweight or government weight midlength. Armalite doesn't show a midlength barrel on their site when you look in the parts catalog, unless I'm just missing it. View Quote I thik when people talk about midlength, at least for the purposes of this thread, they are talking about handguards & sight radius, but all with a 16" barrel. Wilson Combat makes 18" barrels (if memory serves me correctly), if that's what you're looking for. |
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Actually, let me clarify...I mean midlength hg's and gas system too. But the only barrels I see in Armalites parts section are a heavy barrel car length. They have the uppers listed under their upper section. Also...the only preban midlength carbine barrels I see are on their law enforcement guns...now I haven't called them so you might be able to get these barrel only, but they are still HBAR's unfortunately. BTW, I like the dissy's too!
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Quoted: Actually, let me clarify...I mean midlength hg's and gas system too. But the only barrels I see in Armalites parts section are a heavy barrel car length. They have the uppers listed under their upper section. Also...the only preban midlength carbine barrels I see are on their law enforcement guns...now I haven't called them so you might be able to get these barrel only, but they are still HBAR's unfortunately. BTW, I like the dissy's too! View Quote Hmm, I had no idea that was the ccase. I don't follow Armalite too closely. I tried to get one of their uppers several years ago but the wait was too long so I bought a Bushy. You know, you could always buy the Armalite & have Kurt turn the barrel down for ya. |
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RRA might offer a mid-length in pre-ban configuration
[url]www.rockriverarms.com[/url] |
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Quoted: It's great. While it is fairly light, the weight it does have is at the front of the barrel, which helps it balance and helps keep the muzzle on target. Otherwise, it works great, and has the benefit of NOT having the carbine gas system, so it cycles nice and gentle like a 20" rifle. I'm very happy with it. -Troy View Quote Well you can always put a pigtail gas tube in the carbine. It'll have the same length as a standard length gas tube. You can have your cake and eat it to. |
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The pig-tail is a bit of an improvement, but the pressure at the gas port is STILL twice as high on a carbine than on a rifle-length gas system, even if the gas tube length is the same. Plus, you still have the weight of the thicker barrel and the 2nd gas block. My rifle is turned thin from chamber to front sight block (standard M16A2 profile). As such, it's considerably lighter than even an "M4 Dissipator".
-Troy |
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So one could open up the gas port as well as turn down the barrel on a dissy setup. As for the gas block under the guard, it's so light as to almost be non-existent.
I personally think that mids and dissy CAN be equal but the main question is how much real estate one wants on the handguard. |
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Fluted barrel A3 Dissapator with BMAS 4 rail free floating full length handguard, and three rail front fold down sight. Straight from Bushmaster. VERY happy with it.
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ArmaLite has produced a stubby barreled rifle with a rifle length handguard but designed the mid-length handguard for superior technical characteristics (better port pressure and dwell time) and because we think it just looks better than either the stubby barrel or the usual carbine handguard with the long end sticking out. The Mid-length handguard offers great hand placement so it feels great.
Of course, we're prejudiced. |
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I prefer the dissy. As long as I have to have 16" of barrel I might as well use that real-estate for sight radius, which benefits my accuracy.
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M4 profile dissy for me.
[img]http://www.hunt101.com/img/056812.jpg[/img] |
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Dissipator is what I own, longer sight radius plus the shorter, easier to handle length made it a perfect all-around rifle in my book.
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I love my Eliminator (Oly version of Dissy), the extra weight in a carbine length makes it handle a little nicer in my book, when shooting stability is a factor. Feels more solid. Also, concerning the bayonet issue, if the AWB sunsets, simply put a sight base with lug, and thread the barrel, then add a 5 1/4 flash hider on it. You lose the carbine length, but if that was very important to you, you could do it. I don't intend to put a bayo on my eliminator, just a regular A2 flash hider, if the AWB expires.
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