New Rainier quad rail

[Hammer_Man]

Well enough. If it takes a 20oz rail to optimize laser mounting I wonder if there is a better approach. Maybe a taper pinned gas block with a rail on top? Heat is an issue I suppose but there's got to be a way to add insulation in a purpose built device.

When I went through basic training, we had a night fire exercise in which we used A2 rifles with a PEQ-15a direct mounted to the barrel. Honestly I’m not sure how they didn’t cook the circuit boards.

[1168]

No idea about why its a heavy rail. For a long time, people clamored for the lightest weight possible, then when ultra light weight rails appeared, they complained the rail was too flexible. My guess, and its only a guess, is that RA decided to make a quad rail for lasers and people who were demanding a ultra rigid rail.


ETA- Until someone gets one in hand, its hard to say all that much.

I think what Disciple is getting at is that if the posted weights are accurate, its heavier than the RIS II, DDM4, and Larue quads of equivalent length. I wouldn’t expect it to be as light as the current crop of floppy ass “we’re lazy so we engineered the dimensions around a 1.375” barrel nut” MLok rails, but it’d be surprising if it actually outweighs the RIS II. I’ll buy one soon, and check the weight.

[Diamondback]

If there seems to be enough interest, I can talk to John Hwang and see if he would do at a group buy...

Both of the shorties or just one or the other? Unf, here in WA even AR REPAIR PARTS have been designated "contraband"...

[Stickman]

Both of the shorties or just one or the other? Unf, here in WA even AR REPAIR PARTS have been designated "contraband"...

I was actually just thinking of the middle one, but I'll find out.

[hotbiggun42]

I think the fortis rail is the winner. My rifle is fde, a little color will be nice

https://www.rainierarms.com/fortis-m...stem-od-green/

[bb223]

Do you need to pin this to the upper or something? I’m not seeing any type of anti rotation.

[Stickman]

Do you need to pin this to the upper or something? I’m not seeing any type of anti rotation.

It might be like the KAC and a few other rails where there is no external anti rotation. I agree that if there is something there, its missing my cursory glances.

[markm]

I just went back to look at this rail again and saw in the specs that the nut isn't steel. I'm troubled by that a little.

[grizzman]

I just went back to look at this rail again and saw in the specs that the nut isn't steel. I'm troubled by that a little.

I was also surprised when I read that.

[markm]

I was also surprised when I read that.

I guess I'd have to install/run one before condemning that part of it. And I suppose the dimensions of the nut would play into how much load it could handle too.