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CAA Command Arms Accessories M-16/AR-15/M-4 Handguard Triple Rail Mount
$23.40 $26.00 Save 10%
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(11 reviews)
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Most Helpful Positive Review CAA Command Arms TRM3 Triple Rail Mount
This product is well made, and will work just fine in a non-professional ap...
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Most Helpful Negative Review Triple Rail Mount
For AR15 Mount, you must grind the Rail Mount with a Dremel Tool. It WILL N...
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CAA TRM3

by Legacy Reviewer, Verified Owner from United States, TN Written on May 4, 2013
Ordered for the factory hand guard on a S&W M&P15 OR. Installed easily on the hand guard once it was removed. Not all screws lined up but got enough of them installed to make it secure. I am using the TRM3 to hold a vertical foregrip.
Pros: Versatility...
Would recommend: Yes
0 of 0 found the following review helpful.
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Good alternative

by Legacy Reviewer, Verified Owner from United States, TX Written on January 30, 2013
Not as difficult to install as some previous reviews, but not simple either. I like keeping my M4 light and this lets me mount a vertical grip and flashlight without installing a heavy quadrail.
Pros: Usability
Cons: Plastic - Some difficulty to install...
Would recommend: Yes
0 of 0 found the following review helpful.
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CAA Command Arms TRM3 Triple Rail Mount

by Legacy Reviewer, Verified Owner from United States, WA Written on May 27, 2012
This product is well made, and will work just fine in a non-professional application. There were two problems that needed correction before a proper fit was achived on a DPMS handguard. 1). A small drum sander in an electric drill was used on the sides to increase the radius. 2). The third hole in the handguard needed to be made slightly eliptical so the screw could be tighted properly. If your not good with small tools you might want to look for another mounting solution.
Pros: Well Made
Cons: Poor Fit...
Would recommend: Yes
2 of 2 found the following review helpful.
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Triple Rail Mount

by Legacy Reviewer, Verified Owner from United States, IN Written on September 12, 2011
For AR15 Mount, you must grind the Rail Mount with a Dremel Tool. It WILL NOT fit otherwise. If you are not comfortable doing this, I would not recommend this.
Pros: Great Mount for Accesories
Cons: Very Difficult to Mount- Requires Grinding...
Would recommend: Yes
2 of 2 found the following review helpful.
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CAA TRM3 tri-rail mount

by Legacy Reviewer, Verified Owner from United States, CA Written on April 16, 2011
Ordered the The CAA Command Arms Accessories M-16/AR-15/M-4 Handguard Triple Rail Mount TRM3 from Optics Planet on April 7 and recieved it promptly 3 business days later. Advertisement said it would fit most AR-15 hand guards. Unfortunately "most" does not include those on a factory original Colt AR-15A2 GOV'T MODEL (round type hand guards, not the triangular type) with a 20" barrel. The four screws on the TRM3 do not line up with the holes on the fore grip and will require some dremel work on the hand guards to make it fit. The arc of the TRM3 is too tight and only if I force it on the front stock will it lay flush and then I have to keep the force on or it will spring back because it will be under constant tension. Was looking forward to using the TRM3. It's solid construction and light weight promised reliable and stable service but, I would have to permanently modify my hand guards to make it work. I just don't have the heart to start grinding away on my old trusted Colt to accomplish that. Will have to send the TRM3 back:-(
Pros: Quality construction
Cons: Will not fit original Colt AR-15A2 w/20" barrel...
Would recommend: No
1 of 1 found the following review helpful.
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TRM3G CAA Triple Rail Mount

by Legacy Reviewer, Verified Owner from United States, NY Written on November 11, 2010
I bought this rail as an inexpensive rail for occasional use with a Surefire weapon light on an A2 style AR15. The mounting holes did not quite match the cooling hole spacing in my hand guards which required enlarging two cooling holes. The hand guards were made by a GI contractor but since they are green and are less stiff that my black hand guards I suspect that they are not made to MILSPEC. Given the number of products that CAA makes I doubt the mount is incorrectly sized and that the issue was with the spacing of the cooling holes. I'll chalk the spacing issue up to the hand guards.

Once the holes were modified the mount went on fine and was adequately aligned with the rifle bore to give a sharp sight picture at 100 yards through iron sights. The mount comes with two lengths of screws for use with or without heat shields. The rail dimensions are correct for my Surefire Millenium series weaponlight.

Overall it is a well made product that seems to be more than adequately engineered from the structural strength perspective. I believe that anything that breaks this mount will break the hand guard too so an aluminum rail would cost more and be of little practical benefit.
Pros: Inexpensive, color matches my rifles stock.
Cons: See the full comments....
Would recommend: Yes
1 of 1 found the following review helpful.
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Easy to install Picatinny option for your standard AR

by Legacy Reviewer, Verified Owner Written on October 19, 2010

Pros: Quick installation - A lot cheaper than replacing the handgaurds altogether
Cons: Plastic would be better if made from Aluminum still seems pretty sturdy though....
Would recommend: Yes
0 of 0 found the following review helpful.
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Good product

by Legacy Reviewer, Verified Owner from United States, CA Written on July 2, 2010
it is better than an ugly bulky quad rail,not as perfect as it sounds, if you have a big hand you may no have enough space on the hand guard. i don't trust the strength of the attachment. so i don't think it is suitable for vertical grip and or for a sling attachment. It will be good for a simple flash light or other attachment that does not require accuracy and precision
Pros: good alternative for quad rail
Cons: it fits, not a perfect fit though ...
Would recommend: Yes
1 of 1 found the following review helpful.
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Good product for the price

by Legacy Reviewer, Written on February 4, 2010
This product was worth the money. It will mount several after market products and is very versatile. I have been using it for months and have not had any problems with it. Takes a little bit of time to mount it and get it set up, but once it is mounted, no problems.
Pros: Price/versatility
Cons: hard to set up...
Would recommend: Yes
0 of 0 found the following review helpful.
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did not fit.

by Legacy Reviewer, Verified Owner Written on August 26, 2009
I have a Stag Arms A2 upper. The holes on the handguard did not line up. I had to shave off a little bit of plastic on the last hole, and add an aluminum washer. The radius was slightly smaller, not enough to impact the functionality of the rail. I did notice it made the handguard bow in slightly. Not enough for anyone to notice, but I can. The rails will stay on for a while, but Iam planning on buying an Aluminum handgaurd in the future. I can always add it later to my tactical shotgun Iam building.
Pros: tight fit, once i modified it.
Cons: wholes did not line up. ...
Would recommend: Yes
0 of 0 found the following review helpful.
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Comments on 11 User Reviews of CAA Command Arms Accessories M-16/AR-15/M-4 Handguard Triple Rail Mount