BCM QRF quad rail

[markm]

Nice. That's on my fall shopping list.

[markm]

I finally had a reason to grab one of these rails, and I'm really pleased with it.

[Buncheong]

I still love quad rails.

I do, too.

Then again I still listen to/enjoy Alice in Chains, so ...

[markm]

I wouldn't buy anything but a quad rail right now.

[OldGrayGuy]

I've had good (but pretty limited) performance from my 11.5" BCM upper and was looking at picking up a 14.5" with MLOK in the near future. Mark, what is your reason for preferring quad rail at this time?

[sinister]

I'm with Mark for a blaster.

Most free-floats conduct heat through the barrel nut into the rail, regardless of make (even worse with monolithic uppers). With a quad I can put a Knight cover at 6-o'clock and Ergo ladders on the side to keep the profile thin with a little heat insulation.

I like the Larues for a thin profile and short bottom-to-bore line, followed by Daniels and BCM neck-and-neck. The Midwest Industries are also right up there.

I like Geisseles for their hell-for-strong, but the distance-humping foot soldier in me doesn't like the bulky/flat boss just forward of the magazine well and where the traditional slip-ring would be for just plain rucking, toting, and carrying the darn thing.

If I want a slick, smooth profile I'll use an SLR Rifleworks Ion.

[Stickman]

I know you went with the MI rail, but since I just got an upper with the QRF rail I thought I’d share my thoughts. Mine is on a mid-length so it’s the 9”. It appears to be very sturdy, but also pretty light. The slots are all numbered (T, R, B, L) and the color matches the BCM receiver perfectly. Hope this helps someone if they are trying to decide on a full pic rail.





Sent from my iPhone using Tapatalk

I’ll take a moment to comment on this old thread that I find that to be an incredibly good looking carbine.

[Stickman]

I'm with Mark for a blaster.

Most free-floats conduct heat through the barrel nut into the rail, regardless of make (even worse with monolithic uppers). With a quad I can put a Knight cover at 6-o'clock and Ergo ladders on the side to keep the profile thin with a little heat insulation.

I like the Larues for a thin profile and short bottom-to-bore line, followed by Daniels and BCM neck-and-neck. The Midwest Industries are also right up there.

I like Geisseles for their hell-for-strong, but the distance-humping foot soldier in me doesn't like the bulky/flat boss just forward of the magazine well and where the traditional slip-ring would be for just plain rucking, toting, and carrying the darn thing.

If I want a slick, smooth profile I'll use an SLR Rifleworks Ion.

No slight at all on your opinions, but if you haven’t tried Montys CMR rail as a smooth rail, it’s worth checking out. I’m a pretty huge fan still of quad rails, but his direct attach ( not to be confused with MLOK) is kinda special.

[markm]

Mark, what is your reason for preferring quad rail at this time?

Just going back to what works best. I'm not dumping my Keymod. It's set up and the lights, sling mount, and finger stop aren't going anywhere.

With the good old pic rail, I was able to pop a bi pod on the gun this weekend without any effort.

Most free-floats conduct heat through the barrel nut into the rail, regardless of make (even worse with monolithic uppers). With a quad I can put a Knight cover at 6-o'clock and Ergo ladders on the side to keep the profile thin with a little heat insulation.

The only thing I'd change on the BCM is adding the cuts on the end slots for KAC panels to snap in. The chinese larue knock of clips are my 2nd choice.

[officerX]

Just going back to what works best. I'm not dumping my Keymod. It's set up and the lights, sling mount, and finger stop aren't going anywhere.

With the good old pic rail, I was able to pop a bi pod on the gun this weekend without any effort.



The only thing I'd change on the BCM is adding the cuts on the end slots for KAC panels to snap in. The chinese larue knock of clips are my 2nd choice.

Glad to hear you say Keymod. I’ve got a BCM KMR on every rifle I’ve got, with the exception of a URXIII that came on my AAC upper and triangle hand guards on a 20” build.


Sent from my iPhone using Tapatalk Pro