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Posted: 10/25/2013 4:04:43 AM EDT
What are the pros and cons of extending the end of the rail past the end of the barrel?
This would be on an SBR that is set up to run both suppressed and unsuppressed. I an thinking 11.3" barrel and syrac gas block with either 12.37" rail or 11" rail. In either case, OD of can is less than ID of rail. Posted Via AR15.Com Mobile |
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Will the can fit inside the rail?
ETA-Yes- missed your statement. |
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All but one of my uppers have the can under the rail, allows better prone as well as bipod capability for the correct leverage. Enjoy! |
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All but one of my uppers have the can under the rail, allows better prone as well as bipod capability for the correct leverage. Enjoy! View Quote View All Quotes View All Quotes Quoted:
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Will the can fit inside the rail? Yes. Posted Via AR15.Com Mobile All but one of my uppers have the can under the rail, allows better prone as well as bipod capability for the correct leverage. Enjoy! Does this cause any issues when shooting unsuppressed? Is cleaning more difficult? Posted Via AR15.Com Mobile |
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I have always wanted to do this, especially if I could permanently affix the rail as a barrel extension to reach 16" and keep the rifle out of SBR status. However, I am concerned about the ability to properly mount the suppressor to the thread muzzle deep inside the "cage". It seems like you would loose the ability to make sure it wasn't cross-threading and to snug it up without over torqueing it. It also seems removing it could become difficult if a bit of heat fouling were holding it tight. I don't know, just something I am concerned about [://
Tagged to read real World experiences. |
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I've never used one like that, but I know that cans get HOT AS HELL. I'm pretty sure that heat would quickly make its way to you handguard.
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Bad idea if you ask me. Makes removing it if you have something like a Surefire or a M42000 etc a pain in the ass to remove. Not only that, you now have the possibility of putting your hand over an area where hot gasses are going to be flying out of when the suppressor is off. Unless that suppressor is dedicated 100% of the time on that gun, skip that idea.
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Quoted: I've never used one like that, but I know that cans get HOT AS HELL. I'm pretty sure that heat would quickly make its way to you handguard. View Quote Indeed! Without full atuo, it's probably not going to get hot enough to harm aluminum without direct contact, but plastic parts are in danger... Either way, you don't want any part of putting your hand in the vicinity. I like the look though! My .308 suppressor goes from cold to hot enough to cast a mirage (through a 20 power scope) in under 10 rounds. |
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Pros:
Looks good. Allows for accessories to be mounted as far forward as possible, less shadowing from lights, longer sight plane, etc. More options for slings, bipods, etc to be mounted near the end of the gun Cons: Requires large diameter rail (personal preference, but I don't care for them) Heat buildup (not too bad with a wide, open rail system and decent rail covers) Depending on mount, it may be difficult to install/remove suppressor. If you do it, I would recommend a suppressor that doesn't have a latch at the base (the YHM or Gemtech style QD systems would work well). Avoid something like an AAC that requires you to hit the latch underneath the rail. It can be done, but it's a little trickier. It also works well with 9mm and the 3 lug mount. I would also recommend adding a handstop or VFG near the end of the barrel, so that your hand isn't in front of the muzzle when you shoot unsuppressed. Cleaning under the rail isn't really an issue. You can get in there with a small brush while the suppressor is removed, and normally, the muzzle isn't something you really clean that often anyways. |
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I have a YHM wraithXL under a rail on my 5.5" 9mm AR. I've never shot it without the can so I can't offer much there. I can tell you that with a pistol caliber, heat will not be an issue in semi-auto. Can't comment on full auto.
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Quoted: I just did this with a Form 1 30 Cal can. The OD of the can is 1.75" so the only rail I could find to accommodate that size was the Seekins MCSR V2 at 1.80" ID. The barrel is 12" long, the can is 8" long and the rail is 15" long. I like the setup and it works pretty well, but the rail gets HOT. I anticipated this of course because of the small amount of clearance between it and the can, and I put an AFG on there to help as a result. It's a neat upper, but the downside is that it cannot be fired without the can installed. http://i1025.photobucket.com/albums/y316/righttobeararms8/Gun%20Pics/SuppressedAR1_zpsaf03d234.jpg http://i1025.photobucket.com/albums/y316/righttobeararms8/Gun%20Pics/SuppressedAR2_zps78493deb.jpg View Quote That looks sharp , I like it a lot |
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Quoted: What are the pros and cons of extending the end of the rail past the end of the barrel? This would be on an SBR that is set up to run both suppressed and unsuppressed. I an thinking 11.3" barrel and syrac gas block with either 12.37" rail or 11" rail. In either case, OD of can is less than ID of rail. Posted Via AR15.Com Mobile View Quote All I can tell you is that it looks fucking bad ass and I fully intend on my .300BLK build ending up as such. I already have the rifle-length tube on order. |
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Indeed! Without full atuo, it's probably not going to get hot enough to harm aluminum without direct contact, but plastic parts are in danger... Either way, you don't want any part of putting your hand in the vicinity. I like the look though! My .308 suppressor goes from cold to hot enough to cast a mirage (through a 20 power scope) in under 10 rounds. View Quote View All Quotes View All Quotes Quoted:
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I've never used one like that, but I know that cans get HOT AS HELL. I'm pretty sure that heat would quickly make its way to you handguard. Indeed! Without full atuo, it's probably not going to get hot enough to harm aluminum without direct contact, but plastic parts are in danger... Either way, you don't want any part of putting your hand in the vicinity. I like the look though! My .308 suppressor goes from cold to hot enough to cast a mirage (through a 20 power scope) in under 10 rounds. it does look sweet as fuck.. but i agree. getting a digit forward of that flash hider if the can is not there would SUCK! |
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I've never used one like that, but I know that cans get HOT AS HELL. I'm pretty sure that heat would quickly make its way to you handguard. View Quote THIS. My local gunsmith had someone who bugged him to do this for them, despite the gunsmith telling him the can would quickly heat up the fancy aluminum free float he wanted to cover the can with. Customer persisted and loved how the gun looked when it was finished.. But the came back after the first range trip to get the configuration changed after he heated up his handguard and hand with just one mag dump. |
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Why would you shoot without a can?
Posted Via AR15.Com Mobile |
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I would do it on a dedicated suppressed upper. Otherwise, your options of cans/mounts gets limited to what you can thread on and off with the rail in the way. Also, if you shoot unsuppressed with a rail extending past the muzzle, you can damage your rail (there are pics of a shrouded brake/comp on here that ended up splitting the rail).
Shrouded cans look cool as hell. I built an upper/pistol with an 8.5" barrel, 10" Seekins BAR, and a KX3. The KX3 is partially shrouded, but the muzzle is still past the rail. When my can gets out of jail, it'll be partially shrouded to provide the 'seamless' look, but doesn't put you at risk of catching muzzle blast on a finger or damaging the rail unsuppressed in the mean time. |
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I'm in the minority on this, but its not my thing. But functionality over looks. Maybe guys who do it can tell us what makes it better functionally? |
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Quoted: I'm in the minority on this, but its not my thing. But functionality over looks. Maybe guys who do it can tell us what makes it better functionally? View Quote Overall length vs useable rail space or hand positioning, longer sight radius. Aesthetics are the main thing for most people I think.
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I decided to go with the 11" rail on the 11.3" barrel. Thanks for the input guys!
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Bad idea if you ask me. Makes removing it if you have something like a Surefire or a M42000 etc a pain in the ass to remove. Not only that, you now have the possibility of putting your hand over an area where hot gasses are going to be flying out of when the suppressor is off. Unless that suppressor is dedicated 100% of the time on that gun, skip that idea. View Quote I agree, but my experience is that if it is a threaded suppressor or even an internal QD like the YHM its not a bad thing. A ratcheting system like AAC or Surefire will not work. |
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wouldn't it make a difference what caliber you intend to shoot?
would a 9mm c a n be less of a problem under rail? |
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Be sure to get a rail that will fit over your can. I like the YHM diamond rails for this.
Just be sure, if you do this, to have a suppressor, MAKE SURE ITS DIRECT THREAD ONLY! Doesnt work so well for QD cans..... |
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Not a fan of having the muzzle beneath a rail, since I don't shoot it suppressed exclusively http://imageshack.us/a/img703/1869/img2043c.jpghttp://imageshack.us/a/img51/3215/img2041kk.jpg View Quote What barrel length and caliber is your setup? Nice rig btw |
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Quoted: View Quote Shrouded cans look cool as hell. I built an upper/pistol with an 8.5" barrel, 10" Seekins BAR, and a KX3. The KX3 is partially shrouded, but the muzzle is still past the rail. When my can gets out of jail, it'll be partially shrouded to provide the 'seamless' look, but doesn't put you at risk of catching muzzle blast on a finger or damaging the rail unsuppressed in the mean time. Nice
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I wish I could make mine all pretty and shit. http://imageshack.us/a/img708/6974/8mai.jpg http://imageshack.us/a/img842/5199/cfbe.jpg View Quote View All Quotes View All Quotes Quoted:
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This thread needs MOAR pics... I wish I could make mine all pretty and shit. http://imageshack.us/a/img708/6974/8mai.jpg http://imageshack.us/a/img842/5199/cfbe.jpg Sometimes ugly is sexy. If that makes sense. |
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What barrel length and caliber is your setup? Nice rig btw View Quote View All Quotes View All Quotes Quoted:
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Not a fan of having the muzzle beneath a rail, since I don't shoot it suppressed exclusively http://imageshack.us/a/img703/1869/img2043c.jpghttp://imageshack.us/a/img51/3215/img2041kk.jpg What barrel length and caliber is your setup? Nice rig btw Thanks, It's a Noveske 8.2" .300 Blackout |
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Quoted: Overall length vs useable rail space or hand positioning, longer sight radius. Aesthetics are the main thing for most people I think. View Quote View All Quotes View All Quotes Quoted: Quoted: I'm in the minority on this, but its not my thing. But functionality over looks. Maybe guys who do it can tell us what makes it better functionally? Overall length vs useable rail space or hand positioning, longer sight radius. Aesthetics are the main thing for most people I think. Correct. |
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I'm in the minority on this, but its not my thing. But functionality over looks. Maybe guys who do it can tell us what makes it better functionally? View Quote My 9mm barrel is only 5.5" which would make for a very short rail. My AFG is right at the end of mine, otherwise I'd probably go shorter for weight savings. |
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