User Panel
User Panel
User Panel
|
Posted: 10/30/2006 8:06:20 AM EDT
[#1]
well, i dont believe that bushmaster makes a middy yet, so i'll say its a CAR length that you have
the "stepped" part has nothing to do w/ the gas system length; "stepped" could refer to a couple of things, but usually to either: the stepped down portion on an M4 bbl (the cut out) for attaching an M203 or the stepped down cut on the muzzle for a propper crowning got a pic of the bbl? |
|
|
|
Posted: 10/30/2006 8:08:09 AM EDT
[#2]
Bushy m4 style barrel is CAR length
CAR length and midlength are gas port dependant. Mike |
|
|
|
Posted: 10/30/2006 8:18:47 AM EDT
[#3]
Yeah - "mid-length" refers to the fact that the gas port is at 8.5" down the barrel instead of 6.5" like a CAR or 11.5" like a rifle.
www.ar15.com/forums/topic.html?b=3&f=66&t=266108 Any profile barrel could be considered "mid-length" if it had a gas port at 8.5" (HBARs, M4s, lightweight, etc). |
|
|
|
Posted: 10/30/2006 8:20:02 AM EDT
[#4]
Its for the use of a 203 im sure, but then again im a newby so I wont say that ~lol~.
http://www.bushmaster.com/shopping/weapons/bcwa3f14m4iz.asp |
|
|
|
Posted: 10/30/2006 8:21:44 AM EDT
[#5]
|
|
|
|
Posted: 10/30/2006 8:40:50 AM EDT
[#7]
No problemo - we wouldn't be answering if we minded the questions. How else are people supposed to learn?
 Welcome to AR15.com, by the way. I haven't seen you around before now. |
|
|
|
Posted: 10/30/2006 9:24:19 AM EDT
[#8]
|
|
|
|
Posted: 10/31/2006 2:14:05 PM EDT
[#9]
I am a noob too! Great writeup on the AR operation and gas factors on ejection. Taking a barrel and putting the gas port in different locations would affect the rifle timing, the way I undestand it.
I have not bought my upper yet and I am looking at building a tactical build for a first time. Does it matter to me where the gas block sits on a 16 inch barrel at this point? |
|
|
|
Posted: 10/31/2006 3:38:34 PM EDT
[#10]
I'd go mid-length just for the lower pressures meaning (most likely) longer bolt life, smoother cycling, and less recoil. The only reason to go CAR-length is to get the wider assortment of accessories that fit them and the (usually) lower prices. In addition, a 16" middy can use a standard M7 or M9 bayonet, and a 16" CAR cannot. The "timing" issue (assuming you mean dwell time and such) is fixed by opening up the gas port wider for less barrel past the gas port.
|
|
|
Win a FREE Membership!
Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!
You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.
AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types.
From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm.
Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more.
Copyright © 1996-2024 AR15.COM LLC. All Rights Reserved.
Any use of this content without express written consent is prohibited.
AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own.
