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Posted: 2/14/2015 7:50:51 PM EDT
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Ok like I said in my last post I know basically nothing about AR's so expect a lot of dumb questions from me.
I am sure this is one of those dumb questions but here it is. I am looking to buy this barrel http://yhm.net/16-threaded-fluted-melonite-qpq-barrels.html and wanted to use a mid length gas tube with adjustable gas block but it says it's drilled for carbine gas system so is it possible to use a mid legth and if so what would I have to do? |
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OK, Thank you very much!
I think I have all my bases cover as far as parts but let me run it past you guys to make sure I'm not missing anything before I place my order. 
Add to that list. Lower I am picking up locally. CMC 3.5 trigger. VooDoo Innovations Bolt Carrier Assembly with Integral Gas Key Wilson combat Extended/Oversize Bolt Release |
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So if you state you know nothing about ARs then why did you chose a JP silent capture spring, adjustable gas block or the YHM carbine length barrel? Just curious why you made these choices. It's what I like. Looked for what I liked then researched it to make sure it was at least decent quality stuff. I have put together many none AR firearms I just have never had any interest in AR's. So I may not know much about AR's but I am not completely dumb when it comes to guns and also know how to research things. If you have any suggestions on where I can make improvements I am open to hear them. |
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I thought this took it's place. https://www.primaryarms.com/Magpul_Ambidextrous_Sling_Attachment_Point_p/mag500.htm?CartID=12 Is that right? |
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I thought this took it's place. https://www.primaryarms.com/Magpul_Ambidextrous_Sling_Attachment_Point_p/mag500.htm?CartID=12 Quoted:
I thought this took it's place. https://www.primaryarms.com/Magpul_Ambidextrous_Sling_Attachment_Point_p/mag500.htm?CartID=12 My bad.  You are correct. This one may be a better choice for QD's for your sling.Link
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It's what I like. Looked for what I liked then researched it to make sure it was at least decent quality stuff. I have put together many none AR firearms I just have never had any interest in AR's. So I may not know much about AR's but I am not completely dumb when it comes to guns and also know how to research things. If you have any suggestions on where I can make improvements I am open to hear them. Quoted:
Quoted:
So if you state you know nothing about ARs then why did you chose a JP silent capture spring, adjustable gas block or the YHM carbine length barrel? Just curious why you made these choices. It's what I like. Looked for what I liked then researched it to make sure it was at least decent quality stuff. I have put together many none AR firearms I just have never had any interest in AR's. So I may not know much about AR's but I am not completely dumb when it comes to guns and also know how to research things. If you have any suggestions on where I can make improvements I am open to hear them. If your wanting mid length then I would go here. As for adjustable gas blocks aren't really needed IMO unless you go short barreled or suppressed. But if you must then go with a SLR or JP. That Seeking is a PITA to adjust with the rail on. As for the jp silent capture is a nice if you want a quiet spring but that's about it. It can help with some fine tuning but is not really needed. I always suggest keeping it simple first THEN you can go with the fine tuning. Also that BCM Large latch is huge so unless you have huge bogger fingers you may be better off with the Mod 4 medium. Just suggesting from experience. Carry on. |
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If you have any suggestions on where I can make improvements I am open to hear them. I strongly advice using Midlength gas system length on a 16" barrel instead of the Carbine length that you have. Even more with the JP captured spring system, those don't seem to have much buffering action or effective "buffer weight" as they come stock, so you really need a gas system that will give you a better system timing and energy input. Most find the "Large" size Gunfighter charging handles to be too obtrusive, the "Medium" size is what I'd suggest. If you go with a midlength barrel I would skip the adjustable gas block. I was pretty pleased with the cheekweld on the newer MOE SL stock, might be something to consider as an alternative to the traditional MOE, although it is a little more expensive. The 3.5 weight trigger is lighter than I would suggest for a general use practical AR15. If you are thoroughly practiced in using a trigger of that weight then make your own decision. |
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If your wanting mid length then I would go here. As for adjustable gas blocks aren't really needed IMO unless you go short barreled or suppressed. But if you must then go with a SLR or JP. That Seeking is a PITA to adjust with the rail on. As for the jp silent capture is a nice if you want a quiet spring but that's about it. It can help with some fine tuning but is not really needed. I always suggest keeping it simple first THEN you can go with the fine tuning. Also that BCM Large latch is huge so unless you have huge bogger fingers you may be better off with the Mod 4 medium. Just suggesting from experience. Carry on. Well the reason I don't want to keep it simple on this one and move up on the next build is because this is more than likely going to be my only build of an AR so I want to do it right the first time. I like to go as hard as I can/think is logical when I do something so that's why while a lot of these parts may not be necessary they can help If I'm not mistaken so therefore I just want them. That barrel would be fine but I really want the Diamond Fluting. thanks for the tip on gas block adjustment. I went for the JP because it has the side adjustment that I could get to through the hand guard. even though this setup will probably get an Aimpoint and magnifier I was going with the large BCM incase I ever put a big scope on it but I may just get the size down if you're saying it's that big. |
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I strongly advice using Midlength gas system length on a 16" barrel instead of the Carbine length that you have. Even more with the JP captured spring system, those don't seem to have much buffering action or effective "buffer weight" as they come stock, so you really need a gas system that will give you a better system timing and energy input. Most find the "Large" size Gunfighter charging handles to be too obtrusive, the "Medium" size is what I'd suggest. If you go with a midlength barrel I would skip the adjustable gas block. I was pretty pleased with the cheekweld on the newer MOE SL stock, might be something to consider as an alternative to the traditional MOE, although it is a little more expensive. The 3.5 weight trigger is lighter than I would suggest for a general use practical AR15. If you are thoroughly practiced in using a trigger of that weight then make your own decision. Quoted:
Quoted:
If you have any suggestions on where I can make improvements I am open to hear them. I strongly advice using Midlength gas system length on a 16" barrel instead of the Carbine length that you have. Even more with the JP captured spring system, those don't seem to have much buffering action or effective "buffer weight" as they come stock, so you really need a gas system that will give you a better system timing and energy input. Most find the "Large" size Gunfighter charging handles to be too obtrusive, the "Medium" size is what I'd suggest. If you go with a midlength barrel I would skip the adjustable gas block. I was pretty pleased with the cheekweld on the newer MOE SL stock, might be something to consider as an alternative to the traditional MOE, although it is a little more expensive. The 3.5 weight trigger is lighter than I would suggest for a general use practical AR15. If you are thoroughly practiced in using a trigger of that weight then make your own decision. Can you guys suggest a good barrel that looks like the YHM but is made for mid length system? Going with the mid on the charging handle so thanks for that tip. Don't like the look of the MOE SL. I was going to go with the SSA-E which is probably a better trigger but decided since I don't have any nice/light single stage rifles I would go with the CMC. |
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I got you. Go big or go home. That CH is huge. I run several scopes and have no problem with the mod 4 mediums. Another thing I notice is that rail is heavy. 19+ oz. Thats a lot. Any reason you wouldn't want a lighter option? Mostly looks really. I was going to go with the spectra length that would be a little lighter (might still) but though the longer one might look better. |
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let me also say that if you haven't already noticed this rifle is not being put together to be a practical "gun fighting" setup or anything like that as I have other firearms for stuff like that.
The only reasons I am even putting this dude together is it's a cheaper rifle to shoot and to have a new rifle project that ends in a sweet new range toy. So yes looks do play a big role in this project. Now as far is the adjustable gas block why do you say it's a no go with a 16" barrel? It may not be needed per say but can't it still help with recoil impulse? |
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I would get the CTR over the MOE. It locks up tighter.
I would also just buy a receiver extension kit and try that before the silent capture spring. Nothing wrong with them but it just seems like a solution to a non existent problem. In my head at least. The advent of the mid length reduced the need for an adjustable block. ETA: BHW will make you just about any barrel you want. |
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I would get the CTR over the MOE. It locks up tighter. I would also just buy a receiver extension kit and try that before the silent capture spring. Nothing wrong with them but it just seems like a solution to a non existent problem. In my head at least. The advent of the mid length reduced the need for an adjustable block. Everything is already ordered other then the barrel. |
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http://www.bravocompanyusa.com/16-Mid-Length-Barrel-s/38.htm They have lightweight flutted barrels. Make sure you get the right gas block size if you go lightweight profile. Most need a .625 gas block instead of more standard .750. I really want one that is just like the YHM down to the 0.750 standard gas block, diamond fluting and Melonite. I just would like it to take a mid length gas tube. |
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I'm a little late to the party, sorry. PA ships fast as shit but you might be able to contact Marshall and change some stuff if you wanted to. PA is one of my favorite places. Only problem is you usually get the shipping notice within an hour  Nah. As long as the parts I got work together I am happy with them. I did make a few changes to the order based on suggestions here. Got the Fortis QD end plate and changed the charging handle to mid. I also decided on the shorter spectra forend. I do kind of wish I would have got the CTR or Hogue AR15 OverMolded but I ended up buying the MOE locally at a place I can't take it back so I will have to live with it. |
| Nothing wrong with the MOE, I have a few of them. The CTR has a friction lock on it that removes any "rattle" in the stock. The last MOE I used was a little loose. I put some tape on the extension and all is good. It was probably the extension not the stock, it was an extension I had laying around. |
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Well I got the lower put together and the upper is just awaiting the barrel.
I have to say I see now why these things are so popular. They are so easy to work with/put together that even a drunken monkey could be trained to do it. I slapped the thing together in literally no time and there was no real cussing or anything like other builds i've done. although looking back now I do kind of wish I would have just got a Colt LE901 and built a 556 upper to go with it simply for the versatility. |
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The barrel nut for that forearm can be a trick to line up.
The SLR series looks better, but I have not tried one yet. The Spikes FN barrel is pretty good and there plenty of others out there that are mid-length. I would not personally go for the JP spring assmb and adj gas block for a first build. YMMV |
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I already have everything bought and put together. (See last few post)
Just waiting on my barrel decision. I have been talking to black hole through E-mail and I think I am going to give them a call tomorrow and see about having them make me a custom version of their national match barrel. |
| Well after talking to Black Hole they have no problem doing what I want but it looks like their fluting guy is down and out for probably a few months. The guys there seem very nice and price wasn't to crazy but I am pretty impatient when it comes to finishing projects I have started so are there any other options for shops that will be willing to do the fluting design I want. |
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Now as far is the adjustable gas block why do you say it's a no go with a 16" barrel? It may not be needed per say but can't it still help with recoil impulse? I'd use an adjustable gas block every time. You can open them up all the way and will work just like a non adjustable. That way you have the option to fine tune the gas system. I don't see what the benefit of not being able to adjust it would be. The newer version jp gas blocks have a hole in the front which contains a brass set screw. You use it to lock the adjustment down so you don't have to worry about the adjustment changing. |
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I'd use an adjustable gas block every time. You can open them up all the way and will work just like a non adjustable. That way you have the option to fine tune the gas system. I don't see what the benefit of not being able to adjust it would be. The newer version jp gas blocks have a hole in the front which contains a brass set screw. You use it to lock the adjustment down so you don't have to worry about the adjustment changing. Quoted:
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Now as far is the adjustable gas block why do you say it's a no go with a 16" barrel? It may not be needed per say but can't it still help with recoil impulse? I'd use an adjustable gas block every time. You can open them up all the way and will work just like a non adjustable. That way you have the option to fine tune the gas system. I don't see what the benefit of not being able to adjust it would be. The newer version jp gas blocks have a hole in the front which contains a brass set screw. You use it to lock the adjustment down so you don't have to worry about the adjustment changing. Thats the way I was looking at it as well. It's not like it's super hard to setup so I don't get why it would be such a negative. Not necessary maybe but a lot of stuff I like/want isn't really necessary. However I don't think mine came with a brass set screw. |
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Thats the way I was looking at it as well. It's not like it super hard to setup so I don't get why it would be such a negative. Not necessary maybe but a lot of stuff I like/want isn't really necessary. However I don't think mine came with a brass set screw. Quoted:
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Now as far is the adjustable gas block why do you say it's a no go with a 16" barrel? It may not be needed per say but can't it still help with recoil impulse? I'd use an adjustable gas block every time. You can open them up all the way and will work just like a non adjustable. That way you have the option to fine tune the gas system. I don't see what the benefit of not being able to adjust it would be. The newer version jp gas blocks have a hole in the front which contains a brass set screw. You use it to lock the adjustment down so you don't have to worry about the adjustment changing. Thats the way I was looking at it as well. It's not like it super hard to setup so I don't get why it would be such a negative. Not necessary maybe but a lot of stuff I like/want isn't really necessary. However I don't think mine came with a brass set screw. Here is where you can see the hole in the front of the gas block for the secondary set screw. You can also get it dialed in then use some lock tight. I run the .936 aluminum low profile gas block on my build. I don't think they have had the second set screw model out very long so if there is probably old stock floating around. Mine came with the set screw but it was purchased as the JP Barrel assembly which includes : Barrel, Muzzle Device, Gas Bock, Gas Tube, and a head spaced JP enhanced bolt. 
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