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Posted: 11/27/2014 10:18:16 PM EDT
[Last Edit: 11/27/2014 10:18:47 PM EDT by virus22x]
Thinking of getting a new ar.
I've had 16's before and even a 10.5" pistol
I have one 16" BCM Kmr one right now and i want to have one for longer range and one for shorter ranges
I was planning on getting a 11.5" but came across alot of deals for a 14.5 complete rifle.

So doing any type of upper work would be a bitch. (replacing handguard, gas block.etc) but it may be cool just to have it a bit shorter

So those of you that have a 14.5, how much of a difference does it make? noticeable?

First response: "It make's 1.5" of difference "
Link Posted: 11/27/2014 10:31:26 PM EDT
IMHO it makes a big difference. The 14.5" barrel balances better than the 16" barrel.
Link Posted: 11/27/2014 10:33:03 PM EDT
[Last Edit: 11/27/2014 10:33:41 PM EDT by RogueSpear2023]
Makes a huge difference, I was surprised when I made the switch. 14.7" feels perfect as far as balance, I always found the 16" a bit awkward and front heavy.
Link Posted: 11/27/2014 10:41:04 PM EDT
Worth it
Link Posted: 11/27/2014 10:52:16 PM EDT
I previously owned a 16" Bcm with 13" kmr and LW barrel profile, I ended up trading the rifle and I'm replacing it with a 14.5" with sure fire muzzle break Bcm with 13" kmr and LW barrel profile
Link Posted: 11/27/2014 11:08:02 PM EDT
All my ARs are now 14.5s. Well, both of them.
Link Posted: 11/27/2014 11:50:22 PM EDT
I have both... 14.5 carries better and the 16 has about 100 FPS more velocity
Link Posted: 11/27/2014 11:52:30 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By M4_man_223:
I have both... 14.5 carries better and the 16 has about 100 FPS more velocity
View Quote

This
Link Posted: 11/27/2014 11:57:21 PM EDT
I went from 16 to a 14.7. I doubt I'll ever own another 16. At the ranges I shoot the extra velocity of the 16 means nothing.
Link Posted: 11/28/2014 12:05:58 AM EDT
[Last Edit: 11/28/2014 12:09:22 AM EDT by Blain]
Originally Posted By virus22x:
Thinking of getting a new ar.
I've had 16's before and even a 10.5" pistol
I have one 16" BCM Kmr one right now and i want to have one for longer range and one for shorter ranges
I was planning on getting a 11.5" but came across alot of deals for a 14.5 complete rifle.

So doing any type of upper work would be a bitch. (replacing handguard, gas block.etc) but it may be cool just to have it a bit shorter

So those of you that have a 14.5, how much of a difference does it make? noticeable?

First response: "It make's 1.5" of difference "
View Quote



It's actually less than 1.5" difference, closer to 1" due to the min 16" length requirement.

100 FPS for one inch is a huge difference. You're talking 50 yards of reliable fragmentation range difference for M193 and M855.

I don't find the 1" that noticeable, maybe it's because I'm used to and prefer 20" guns, or that I am a big guy. 100 fps is huge though, especially for only one inch.

To give a bit of perspective, there is also a 100 fps difference between 16" and 20" barrels, and that's for four inches of length! You could argue giving up 100 fps for a 4" length difference, that same velocity loss for only 1"? No way!
Link Posted: 11/28/2014 12:18:21 AM EDT
FPNI
It balances well. Using non-mil ammo the loss of 100 fps is..meh
Link Posted: 11/28/2014 12:28:28 AM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By jpk33:
FPNI
It balances well. Using non-mil ammo the loss of 100 fps is..meh
View Quote

This.
Link Posted: 11/28/2014 12:30:46 AM EDT
you could try one of the 5r profile barrels if you're worried about FPS, they're supposed to chrono about 2 inches faster (especially the Noveskes)
Link Posted: 11/28/2014 12:34:00 AM EDT
If you're using non-mil ammo, then it might be worth it. I know that the M4 I'm issued carries a little easier than my AR at home, but it's not that huge of a deal to me. If the majority of your ammo is milsurp or that's the easiest stuff for you to get, then stick with 16".
Link Posted: 11/28/2014 12:38:32 AM EDT
[Last Edit: 11/28/2014 12:38:48 AM EDT by dcsys]
If you will never change the muzzle device, why not ?
Link Posted: 11/28/2014 1:29:20 AM EDT
I really like my 14.5 inch barrels. Especially carbine length since that what it's was made for. I will never own another 16 inch ar. I have two 14.5 bcm ar15 and they are the best ars I've ever owned. Plus I think they look better.
Link Posted: 11/28/2014 1:32:20 AM EDT
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Originally Posted By AR-Ryan21:

This.
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Discussion ForumsJump to Quoted PostQuote History
Originally Posted By AR-Ryan21:
Originally Posted By jpk33:
FPNI
It balances well. Using non-mil ammo the loss of 100 fps is..meh

This.



^^ This, 100 ft/ second is nothing.
Link Posted: 11/28/2014 7:43:00 AM EDT
Either is fine. 1.5 inches isn't making anything unbalanced. Op, u will learn that AR's create placebo like effects often .

The loss of fps is not a concern
Link Posted: 11/28/2014 8:26:04 AM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By RUTGERS95:
Either is fine. 1.5 inches isn't making anything unbalanced. Op, u will learn that AR's create placebo like effects often .

The loss of fps is not a concern
View Quote

I agree, the weight of 1.5" of a .75" barrel is about 53 grams ( 1.86952 ounces ).

http://www.ar15.com/archive/topic.html?b=3&f=12&t=574917

Link Posted: 11/28/2014 8:39:17 AM EDT
I prefer the 16'' over 14.5''- just because I like to change things around. I don't want to be stuck with the same muzzle device forever, especially now that I'm getting in to the suppressor world.

That being said, I prefer my 12'' for anything close and 18'' for anything 150+ yards away. The 16 is just kinda stuck in the middle and doesn't get used very often.
Link Posted: 11/28/2014 4:55:50 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Blain:



It's actually less than 1.5" difference, closer to 1" due to the min 16" length requirement.

100 FPS for one inch is a huge difference. You're talking 50 yards of reliable fragmentation range difference for M193 and M855.

I don't find the 1" that noticeable, maybe it's because I'm used to and prefer 20" guns, or that I am a big guy. 100 fps is huge though, especially for only one inch.

To give a bit of perspective, there is also a 100 fps difference between 16" and 20" barrels, and that's for four inches of length! You could argue giving up 100 fps for a 4" length difference, that same velocity loss for only 1"? No way!
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Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Blain:
Originally Posted By virus22x:
Thinking of getting a new ar.
I've had 16's before and even a 10.5" pistol
I have one 16" BCM Kmr one right now and i want to have one for longer range and one for shorter ranges
I was planning on getting a 11.5" but came across alot of deals for a 14.5 complete rifle.

So doing any type of upper work would be a bitch. (replacing handguard, gas block.etc) but it may be cool just to have it a bit shorter

So those of you that have a 14.5, how much of a difference does it make? noticeable?

First response: "It make's 1.5" of difference "



It's actually less than 1.5" difference, closer to 1" due to the min 16" length requirement.

100 FPS for one inch is a huge difference. You're talking 50 yards of reliable fragmentation range difference for M193 and M855.

I don't find the 1" that noticeable, maybe it's because I'm used to and prefer 20" guns, or that I am a big guy. 100 fps is huge though, especially for only one inch.

To give a bit of perspective, there is also a 100 fps difference between 16" and 20" barrels, and that's for four inches of length! You could argue giving up 100 fps for a 4" length difference, that same velocity loss for only 1"? No way!


I really like this answer. I prefer 20s as well. I have a pinned 14.7 and a 16. Honestly, theres little difference. I only ended up with the 14 cause it was the chf barrel i wanted and what was in stock. Id have been just as happy with a 16.

Maybe if youre spoting a can or some super long fancy flash supressor or brake, but plain jane a2.... Meh take whats available.

Link Posted: 11/28/2014 5:36:13 PM EDT
I like the 14.5"-14.7" barrels because they do handle/balance better with suppressors (but then again,so does a 10.5"). You do need to be certain that you can live with the brake or flash suppressor you have chosen, but frankly, a good gunsmith can remove a pinned/welded muzzle attachment without damaging the barrel if you really need to change it out.
Link Posted: 11/28/2014 5:52:39 PM EDT
I've got a BCM 14.5" LW non-fluted with the 10" KMR rails and with my Aimpoint Pro it is the perfectly balanced lightweight AR IMHO.
Link Posted: 11/28/2014 6:45:24 PM EDT
[Last Edit: 11/28/2014 6:46:08 PM EDT by thornejc]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Cycline3:


I really like this answer. I prefer 20s as well. I have a pinned 14.7 and a 16. Honestly, theres little difference. I only ended up with the 14 cause it was the chf barrel i wanted and what was in stock. Id have been just as happy with a 16.

Maybe if youre spoting a can or some super long fancy flash supressor or brake, but plain jane a2.... Meh take whats available.

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Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Cycline3:
Originally Posted By Blain:
Originally Posted By virus22x:
Thinking of getting a new ar.
I've had 16's before and even a 10.5" pistol
I have one 16" BCM Kmr one right now and i want to have one for longer range and one for shorter ranges
I was planning on getting a 11.5" but came across alot of deals for a 14.5 complete rifle.

So doing any type of upper work would be a bitch. (replacing handguard, gas block.etc) but it may be cool just to have it a bit shorter

So those of you that have a 14.5, how much of a difference does it make? noticeable?

First response: "It make's 1.5" of difference "



It's actually less than 1.5" difference, closer to 1" due to the min 16" length requirement.

100 FPS for one inch is a huge difference. You're talking 50 yards of reliable fragmentation range difference for M193 and M855.

I don't find the 1" that noticeable, maybe it's because I'm used to and prefer 20" guns, or that I am a big guy. 100 fps is huge though, especially for only one inch.

To give a bit of perspective, there is also a 100 fps difference between 16" and 20" barrels, and that's for four inches of length! You could argue giving up 100 fps for a 4" length difference, that same velocity loss for only 1"? No way!


I really like this answer. I prefer 20s as well. I have a pinned 14.7 and a 16. Honestly, theres little difference. I only ended up with the 14 cause it was the chf barrel i wanted and what was in stock. Id have been just as happy with a 16.

Maybe if youre spoting a can or some super long fancy flash supressor or brake, but plain jane a2.... Meh take whats available.




Its only about 50-75fps depending on ammo... not a huge difference. The length difference doesn't have a huge impact as far as maneuvering or the "punch" of the round... 14.5s look cooler but pinning your muzzle device kinda sucks. It really doesn't make a difference to me personally.
Link Posted: 11/28/2014 6:51:04 PM EDT
It depends on what your willing to go through. If you get a 16" your good to go. If you want a 14.5" without the pinned/welded flash suppressor the ATF paperwork is a pain. If your OK with it pinned/welded why not just get the 16" with the extra velocity (small difference).
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