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AR handguard heat shield? #4781978
06/09/18 07:59 AM
06/09/18 07:59 AM
Joined: Apr 2012
Posts: 2,814
West Michigan
buck91 Offline OP
buck91  Offline OP

Joined: Apr 2012
Posts: 2,814
West Michigan
Any thoughts on forearm guards with vs without heat shields? Specifically looking at the mlok free float mid length but a little concerned how it does without a heat shield. Even with relatively ligth range sessions I notice a lot more heat build up with my carbine length AR than other firearms I shoot.


2011 F150 4x4 5.0L
1996 Mustang GT 5spd/ragtop
Re: AR handguard heat shield? [Re: buck91] #4782005
06/09/18 08:30 AM
06/09/18 08:30 AM
Joined: Mar 2015
Posts: 6,033
Glendale, Arizona
billt460 Offline
billt460  Offline

Joined: Mar 2015
Posts: 6,033
Glendale, Arizona
I have always followed the belief that if a barrel is too hot to touch, it is too hot to shoot. I can't imagine how hot you would have to get a barrel before the forend became too hot to handle. Obviously in a military firefight this would not pertain. But that isn't what is happening with firearms at BITOG.

Re: AR handguard heat shield? [Re: buck91] #4782409
06/09/18 05:50 PM
06/09/18 05:50 PM
Joined: Jul 2010
Posts: 20,922
PNW
ZeeOSix Offline
ZeeOSix  Offline

Joined: Jul 2010
Posts: 20,922
PNW
eek

Re: AR handguard heat shield? [Re: buck91] #4782635
06/09/18 11:06 PM
06/09/18 11:06 PM
Joined: Mar 2008
Posts: 6,165
South Florida
bubbatime Offline
bubbatime  Offline

Joined: Mar 2008
Posts: 6,165
South Florida
I've always found the aluminum free float hand guards to absolutely SOAK up any heat. They get hot as can be. The plastic carbine double heat-shield ones that are cheap, are actually really good. I routinely warm up my hand guards to way past too hot to hold, at which point I will let it cool or last ditch move my support hand to the magazine to save from burning myself.

True story- AR15 barrels get HOT, even after a few shots. I told a friend not to touch a barrel, as it was likely 300-400 plus degrees and scalding hot. He said, "No way, loo...... OUCH!!!!" as he grabbed the barrel and learned first hand.


17 Chrysler Pacifica Edge Syn 5W30
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Re: AR handguard heat shield? [Re: bubbatime] #4786448
06/14/18 07:20 AM
06/14/18 07:20 AM
Joined: Apr 2005
Posts: 321
Chadds Ford
Toros Offline
Toros  Offline

Joined: Apr 2005
Posts: 321
Chadds Ford
Originally Posted By: bubbatime
I've always found the aluminum free float hand guards to absolutely SOAK up any heat. They get hot as can be. The plastic carbine double heat-shield ones that are cheap, are actually really good. I routinely warm up my hand guards to way past too hot to hold, at which point I will let it cool or last ditch move my support hand to the magazine to save from burning myself.

True story- AR15 barrels get HOT, even after a few shots. I told a friend not to touch a barrel, as it was likely 300-400 plus degrees and scalding hot. He said, "No way, loo...... OUCH!!!!" as he grabbed the barrel and learned first hand.


Agreed. Fire a 30 rd. magazine or 2 and rain drops vaporize. Does not have to be rapid fire either.

Re: AR handguard heat shield? [Re: buck91] #4786482
06/14/18 08:22 AM
06/14/18 08:22 AM
Joined: Mar 2015
Posts: 6,033
Glendale, Arizona
billt460 Offline
billt460  Offline

Joined: Mar 2015
Posts: 6,033
Glendale, Arizona
If you're worried about barrel and handguard heat in AR-15 platform rifles and pistols, buy yourself one of these.

https://www.midwayusa.com/product/529577/caldwell-accumax-barrel-cooler-ar-15

Re: AR handguard heat shield? [Re: buck91] #4808459
07/08/18 03:32 PM
07/08/18 03:32 PM
Joined: Jul 2018
Posts: 11
USA
Rusty9 Offline
Rusty9  Offline

Joined: Jul 2018
Posts: 11
USA
The lightweight free float handguards do get hot with a few magazines, but they also cool off fast as well.

When it gets too hot to hold you can use gloves. Or if you attach a vertical grip that will solve the problem as well.

It is just the price you pay for the incredible light weight and modularity that the M-LOK style handguards bring to the table.

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