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Posted: 6/18/2014 12:17:20 PM EDT
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Has anyone tried this quick takedown kit made by Huntertown Arms and sold through Copper Custom?
https://www.coppercustom.com/shop/parts-kits/dolos-ar15-quick-change-barrel-system/ For $160, it looks to be worth a try, but it only works with carbine length gas systems with a low profile gas block, and they only offer the tubular handguard currently. Hence, you lose the ability to mount a front BUIS, unless you mount both front and rear BUIS on the flat top - not acceptable to me. I'd like to know if there is a way to modify the handguard so I can mount a short rail section on the front to accept a front sight. Considerations include: 1. Whether a rail section can be attached in such a way as not to interfere with the takedown and installation process; 2. Whether the lockup of the handguard when installed is secure enough to have consistent alignment of the front sight; and 3. Whether the rail section will be on the same plane as the flattop rail, so I don't have to mix n' match sights (not a deal killer, as long as it'll be within the elevation adjustment of the front sight pin.) |
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nvm
BTW, this looks EXACTLY like the Huntertown Arms QCB setup setup announced a few months ago. |
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Quoted: Another brilliant response to a question that wasn't asked. My answer was on topic, and relevant. Using a proprietary system to turn a rifle that already disassembles into two major assemblies is expensive and has drawbacks (no way to mount a front sight, only usable with one upper at a time, etc.). SBR is $200, and can be used with multiple uppers, barrel lengths. A person could have ten different uppers of all sizes and purposes with one lower. Let's see your brilliance shine now Mr. Wood. |
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Quoted:
Another completely off topic non-contributing response. My answer was on topic, and relevant. Using a proprietary system to turn a rifle that already disassembles into two major assemblies is expensive and has drawbacks (no way to mount a front sight, only usable with one upper at a time, etc.). SBR is $200, and can be used with multiple uppers, barrel lengths. A person could have ten different uppers of all sizes and purposes with one lower. Let's see your brilliance shine now Mr. Wood. Quoted:
Quoted:
Another brilliant response to a question that wasn't asked. My answer was on topic, and relevant. Using a proprietary system to turn a rifle that already disassembles into two major assemblies is expensive and has drawbacks (no way to mount a front sight, only usable with one upper at a time, etc.). SBR is $200, and can be used with multiple uppers, barrel lengths. A person could have ten different uppers of all sizes and purposes with one lower. Let's see your brilliance shine now Mr. Wood. Except he was not asking about an SBR or any other alternative, he was asking about this takedown system. OP, I bought a Tac2 takedown kit that almost works the same way except no ratchet system and the same problem mounting a front sight. If you have a straight .750 profile barrel, you could easily mount a clamp on front sight forward of the handguard as there is really no need to take the handguard completely off the barrel. |
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[
..................My answer was on topic, and relevant...................... Now that right there is funny, or maybe sad, I'm not sure which. What specifically about suggesting an NFA item that does not "take down" like the system the OP is asking about is "on topic, and relevant"? Video |
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Quoted:
Except he was not asking about an SBR or any other alternative, he was asking about this takedown system. OP, I bought a Tac2 takedown kit that almost works the same way except no ratchet system and the same problem mounting a front sight. If you have a straight .750 profile barrel, you could easily mount a clamp on front sight forward of the handguard as there is really no need to take the handguard completely off the barrel. Quoted:
Quoted:
Quoted:
Another brilliant response to a question that wasn't asked. My answer was on topic, and relevant. Using a proprietary system to turn a rifle that already disassembles into two major assemblies is expensive and has drawbacks (no way to mount a front sight, only usable with one upper at a time, etc.). SBR is $200, and can be used with multiple uppers, barrel lengths. A person could have ten different uppers of all sizes and purposes with one lower. Let's see your brilliance shine now Mr. Wood. Except he was not asking about an SBR or any other alternative, he was asking about this takedown system. OP, I bought a Tac2 takedown kit that almost works the same way except no ratchet system and the same problem mounting a front sight. If you have a straight .750 profile barrel, you could easily mount a clamp on front sight forward of the handguard as there is really no need to take the handguard completely off the barrel. nvm |
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Quoted: Now that right there is funny, or maybe sad, I'm not sure which. What specifically about suggesting an NFA item that does not "take down" like the system the OP is asking about is "on topic, and relevant"? Quoted: [ ..................My answer was on topic, and relevant...................... Now that right there is funny, or maybe sad, I'm not sure which. What specifically about suggesting an NFA item that does not "take down" like the system the OP is asking about is "on topic, and relevant"? Once again, where is your contribution?  For those of you who can not understand why I posted a better alternative, I will DIRECTLY answer the questions. I'd like to know if there is a way to modify the handguard so I can mount a short rail section on the front to accept a front sight. Considerations include: 1. Whether a rail section can be attached in such a way as not to interfere with the takedown and installation process; 2. Whether the lockup of the handguard when installed is secure enough to have consistent alignment of the front sight; and 3. Whether the rail section will be on the same plane as the flattop rail, so I don't have to mix n' match sights (not a deal killer, as long as it'll be within the elevation adjustment of the front sight pin.) 1. Yes, anything can be done with enough money and machine time. You could also use a clamp on gas block front sight combo onto the barrel, and only use it as a front sight. 2. Supposedly it is secure enough, according the the manufacturer. 3. If the measurements are taken and the rail is machined to the proper height to match the same plane as the upper, yes. |
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Quoted:
[ Except he was not asking about an SBR or any other alternative, he was asking about this takedown system. OP, I bought a Tac2 takedown kit that almost works the same way except no ratchet system and the same problem mounting a front sight. If you have a straight .750 profile barrel, you could easily mount a clamp on front sight forward of the handguard as there is really no need to take the handguard completely off the barrel. This sounds like the best option, and one I didn't consider - thanks. And I neglected to mention this is to be used in conjunction with a pistol lower - I'd rather put $200 toward ammo and hardware than give it to the goobermint. Plus, I don't care to play "mother may I" when it comes to acquiring perfectly legal personal property. My pistol lower is more practical for me than an SBR, and with LAW Tactical folder and an SB15 brace, the lower folds up to less than 9.5 inches. But with 11.5" barrel, and Levang comp, the upper alone is 21.75" long. By separating the barrel, neither component is over 13.5" long - a space savings of over 8". I could almost fit that sucker in a shoebox, if I wanted. |
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The DOLOS could easily be made into something awesome.
Different length rails/tubes but, instead of rotating the whole damn handguard, have a rather inconspicuous folding wrench that's integral to the system, but separate from the actual handguard. It'd simply rotate down, lock the handguard in place, then fold flat against the bottom of the handguard. You'd probably have some sort of simple mechanism to keep the wrench folded and locked in place. With enough precision, it could be good enough to mount sights with pretty close return to zero. A more economic option would simply be to have a folding sight pinned to the barrel past the gas block,(Something low-profile enough for the handguard to slip over, making it user-serviceable) letting them loosen tolerances for the handguard. This would be a neat way to be able to switch barrel lengths/calibers without as much bulk as you have with an entire upper assembly. Might even be cheaper than a whole new upper, once you include optics/sights. So long as future versions aren't outrageously expensive, anyway. The DOLOS has a lot of potential, if they can get it right. |
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Another option is the DRD takedown kit. The only rail length available at the moment is 13", but it wouldn't be hard to cut it down. It solves the front sight issue and seems like a better design IMO. I'm waiting for them to make one in keymod or mlok before I buy one though.
http://www.brownells.com/rifle-parts/receiver-amp-action-parts/receivers/upper-receivers/drd-tactical-ar-15-quick-takedown-build-kit-prod57586.aspx |
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Quoted: Piss poor answer to the question that the OP did not even ask. Crawl back under the bridge. Quoted: Quoted: For $200 you can get an sbr and use whatever you want. They takedown with two pins into manageable size. Piss poor answer to the question that the OP did not even ask. Crawl back under the bridge. Where's your brilliant contribution?
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Full disclosure: I designed it. Of course I think it's awesome.
The installation video shows a low profile gas block because that is what was available when we did the video. There is no need to modify the handguard to utilize a BUIS. Simply use a railed gas block (either height) and install your BUIS on it. It will always return to zero. We will have a pistol length free float handguard available soon. |
| That Dolos page in the link says it will NOT work with a front sight block. I didn't see why it wouldn't, unless you're not going to sell a handguard for each barrel, or at least make them available for this application. My other question dovetailing with a previous question is, if you do mount a rail to the front of it, say it was welded on, when you twist the handguard on, does IT return to the same spot, or does twisting it result in that rail sometimes being canted, and sometimes not? |
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The only time a low profile gas block is needed is if the gas port is under the handguard. The units recently released are all for carbine length gas systems. A railed gas block will work fine for carbine length barrels. Pistol length will require a shortened handguard, which will be forthcoming.
Assuming the handguard returns to the same position every time, an attached rail will return to the same location. |
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I watched the video on M.A.C. And I got to tell you I have doubts about durability.
The "lug" ring is held in place by three setscrews that jam into the threading on the upper. The ratchet bits might be strong but that setscrew business is total bullshit. Return to zero is a fantasy. And again I totally fail to see the point of a take down barrel ar15. I'd love to know what super secret squirrel situation your dreaming about getting into where you need a take down a rifle where the extra 7 inches of reciever is gonna make it not work. It's like taking a sawzall to your cars hood so you can have a smaller door to access the oil cap. |
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Quoted:
That Dolos page in the link says it will NOT work with a front sight block. I didn't see why it wouldn't, unless you're not going to sell a handguard for each barrel, or at least make them available for this application. My other question dovetailing with a previous question is, if you do mount a rail to the front of it, say it was welded on, when you twist the handguard on, does IT return to the same spot, or does twisting it result in that rail sometimes being canted, and sometimes not? The hand guard must be removed to remove the barrel "nut" |
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