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I've currently got a heavy 18" barrel for competition, mainly for a smoother recoil impulse and it works fine for what I need. IME in competition an 18" barrel really doesn't give up anything to the shorter barrels on close and fast targets. Actual use in a vehicle and indoors a shorter barrel wins though, IME.
I've seen a guy regularly hit torso sized steel at 400 yards, offhand, with a 16" barrel. So I'm not convinced that an 18" is needed to make an AR useful at 500. That sounds pretty reasonable from what I have seen. We took Kelly (our engineering intern) and Matt (Production Supervisor) to the range last week. Kelly�s 400yd group (3 shot) is on the right side of the dot and Matt�s is on the left. ![[Linked Image]](http://i1205.photobucket.com/albums/bb428/GreybullPrecision/Ar-15/DSC00418_zpsb8ce2382.jpg) I think the SPR as a whole was abandoned by those that wanted it. They figured a 16" precision gun saved weight and accomplished the same thing.
I have a Noveske SPR and a Noveske 16" light weight built as a Rogue hunter. The 16" weighs a pound less, gives up about 50fps and is just as accurate. If we give the 18 incher a 50fps advantage at the muzzle it only keeps a 40fps advantage at 500yds (in my thin air). 10 MPH wind drift advantage is less than � MOA. I also prefer the 16 inch length for the all around AR. It does everything really well.
John Burns
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I've put together a bunch of SPRs and SPR uppers for individuals, as well as run them at various ranges and time constraints.
They are truly an excellent platform, and if I was in a static position such as on an embassy detail, where I knew I was going to be doing mostly roof top shots, I would take it in a heartbeat.
That being said, said for an all around weapon, I find that a 16" gun with match grade tube, free floated barrel/handguard setup and a proper trigger such as a Geissele Dynamic to ideal.
Top it off with a low powered variable such a 1.5-5 or 2.5-8 Leupold, or a Nightforce 2.5-10x24 and call it good. Which buffer is best for an 18" set up?
Done in Convention by the Unanimous Consent of the States present the Seventeenth Day of September in the Year of our Lord one thousand seven hundred and Eighty seven.
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TAK, do you know how the BCM comp compares to anything else, specifically the battlecomp? I had trouble on a 16" Middy with the BC overcomping and creating muzzle dip. I wondered if the BCM or Griffin might be a better option. All I know about the battle comp is what others have said. A friend replaces an A2 comp on his 11.5in gun and said his shot-to-shot splits got a lot faster. Hope that helps. The BCM is a little over half the price of the Battle Comp and it looks like about half as long, if that matters to you. I am seriously thinking of getting two battle comps. I think the documentary videos on the various websites are convincing. They are saying the noise ain't so bad as compared to others. Did you get any feedback from your friend on the BCM comp????
Done in Convention by the Unanimous Consent of the States present the Seventeenth Day of September in the Year of our Lord one thousand seven hundred and Eighty seven.
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I've put together a bunch of SPRs and SPR uppers for individuals, as well as run them at various ranges and time constraints.
They are truly an excellent platform, and if I was in a static position such as on an embassy detail, where I knew I was going to be doing mostly roof top shots, I would take it in a heartbeat.
That being said, said for an all around weapon, I find that a 16" gun with match grade tube, free floated barrel/handguard setup and a proper trigger such as a Geissele Dynamic to ideal.
Top it off with a low powered variable such a 1.5-5 or 2.5-8 Leupold, or a Nightforce 2.5-10x24 and call it good. Which buffer is best for an 18" set up? H Buffers work well for me. Thats all I use other than one ST-T2 buffer A rifle gas 18" barrel runs smooth with a carbine buffer though. I just got my 16" setup like I wanetd it. Its exactly the same as my 18", just 2" shorter and with a 1-6.5 optic vs. the NF 2.5-10X42 on the 18". I guess I will see which one gets used more and one may go up for sale. ![[Linked Image]](http://farm8.staticflickr.com/7411/13135256995_b9d2902df4_b.jpg) AR-15 16" Rainier Arms Match by wareagle700, on Flickr
John 8:12 "I am the light of the world. Whoever follows me will never walk in darkness, but will have the light of life."
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Cool picture!
What is the mount for the scope???
Noveske barrel???
Last edited by Robert_White; 03/14/14.
Done in Convention by the Unanimous Consent of the States present the Seventeenth Day of September in the Year of our Lord one thousand seven hundred and Eighty seven.
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Thanks. Its a ADM Recon mount and the barrel is a Rainier Arms Match barrel. Pic of my 18" for good measure: ![[Linked Image]](http://farm4.staticflickr.com/3719/12981519673_387b9365aa_b.jpg) AR-15 18" Noveske SPR HDR by wareagle700, on Flickr
Last edited by CBMJR; 03/14/14.
John 8:12 "I am the light of the world. Whoever follows me will never walk in darkness, but will have the light of life."
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RW, don't buy two until you try one. Some folks just don't like them. They can cause muzzle dip on some guns and some guys decide it's too much for them.
And they're loud. The reviews that call them quiet are comparing them to a real brake, which they are quieter than that, but they're not quiet.
your flippant remarks which you so adeptly sling
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And get at least an H buffer. I'm running a VLTOR system but have gone up to an H3 without issue with any ammo I've tried.
your flippant remarks which you so adeptly sling
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RW, don't buy two until you try one. Some folks just don't like them. They can cause muzzle dip on some guns and some guys decide it's too much for them.
And they're loud. The reviews that call them quiet are comparing them to a real brake, which they are quieter than that, but they're not quiet. What he said. The Battle Comp annoys me to no end. I get a significant down ward movement and a vibration that is distracting. It is pretty blasty to boot. The BCM Gunfighter is much flatter shooting for me with no weird vibration and much less blast.
John Burns
I have all the sources.
They can't stop the signal.
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RW, don't buy two until you try one. Some folks just don't like them. They can cause muzzle dip on some guns and some guys decide it's too much for them.
And they're loud. The reviews that call them quiet are comparing them to a real brake, which they are quieter than that, but they're not quiet. Thanks a million for the feedback, and Mr Burns too. It would seem to me that with an 18" and the just right buffer weight and comp and even perhaps a tune-able gas block you could fine tune the recoil out to next to nothing for spotting your own shots through your own scope and fast follow up. Thanks again.
Done in Convention by the Unanimous Consent of the States present the Seventeenth Day of September in the Year of our Lord one thousand seven hundred and Eighty seven.
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I can see my hits and misses through the scope on my set up.
18" rifle gas
VLTOR A5H3
Surefire brake
Try an H2 buffer and go from there. If you're really wanting to be serious about eliminating muzzle rise to see your hits skip the battlecomp and get a real brake. The BC is a compromise, which isn't a knock on it-it was designed as a compromise flash hider / brake / not being overly obnoxious.
your flippant remarks which you so adeptly sling
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Try the JEC Brake. So far I really like it.
Eat Fish, Wear Grundens, Drink Alaskan.
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CBMJR
How ya like that vickers sling? I want one or four.
Done in Convention by the Unanimous Consent of the States present the Seventeenth Day of September in the Year of our Lord one thousand seven hundred and Eighty seven.
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The Blue Force Vickers sling is my favorite by far. I have one for each of my AR's.
John 8:12 "I am the light of the world. Whoever follows me will never walk in darkness, but will have the light of life."
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I can see my hits and misses through the scope on my set up.
18" rifle gas
VLTOR A5H3
Surefire brake
Try an H2 buffer and go from there. If you're really wanting to be serious about eliminating muzzle rise to see your hits skip the battlecomp and get a real brake. The BC is a compromise, which isn't a knock on it-it was designed as a compromise flash hider / brake / not being overly obnoxious.
Trying to do more homework on the subject, but spotting my own shots via my own scope is a dream come true. The VLTOR A5 system requires a new buffer tube, spring and buffer-weight, all VLTOR only products... correct? I am inclined to get it. All the reviews everywhere I have read are all very positive. I am wondering what is it that makes the Vltor system mo better? What is the basic premise here? Thanks for all the feedback.
Done in Convention by the Unanimous Consent of the States present the Seventeenth Day of September in the Year of our Lord one thousand seven hundred and Eighty seven.
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Try the JEC Brake. So far I really like it. This one will turn off/on and accomdate a suppressor install. Looks very interesting.
Done in Convention by the Unanimous Consent of the States present the Seventeenth Day of September in the Year of our Lord one thousand seven hundred and Eighty seven.
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The rifle extension is smoother than the carbine extension due to spring rates.
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The rifle extension is smoother than the carbine extension due to spring rates. Also more reliable, IMO. A rifle buffer tube with an A1 stock is a great set up, IMO.
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But can you get the compactness for shooting out of a vehicle? 
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More reliable with a 20" barrel combined with a collapsable stock but a properly built carbine is just as reliable as any rifle, in fact the extra gas pressure might even give it a plus in dirty conditions.
When used with a 16" barrel, most will never see any benefit or at least utilize it.
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