Machining Fun.

[BlackVCG]

Here's some pics of machining work my friend and I did to his RT-Pro. All work was done on a Bridgeport Vertical Mill.

Enjoy!

Back section of the rail being milled out:

Mainbody being faced:



The finished product:

[Load SM5]

That's a chunk of metal you guys removed. It must weigh nothing now.

[AlabamaMan]

It's as light as a feather i think we can do a little more on the rail but, i just can't wait to get a lighter front grip. I think we lost about 3oz off the rail, i'm gonna have to weigh it to know for sure. And then the front grip was about 6.5 oz so thats about 9.5 oz so far. Over half a pound so far just a little more to go.

[theraidenproject]

How much to do that to an Emag rail? and angle the front and take the wings off.

[than205]

This is exactly what I've been doing to my RTP.
But I wasn't going to mill out the guide bosses for the sear. I was worried about side to side slop. I thought they had them there for a reason.

[AlabamaMan]

We were going to go all the way through like they do with the ULE rail, but then realized that intelliframes are not quit as wide as the e-mag grip frames. So we left about a 1/8" at the bottom all the way across just so there wouldn't be gaps. All you really need to leave is the hunks for the sear axial and enough clearence around all the holes for the twistlock, rail bushing, grip frame and front grip screws. Oh and the alignment hole for the valve.

Here is a pic of the AGD ule so you can see the differences.

[than205]

What are you guys doing on the foregrip?
I was thinking of .593" diameter from the bottom 3" up.
And then two .25" holes 1" deep 90 degrees from the mount holes on the top.

[BlackVCG]

Originally posted by than205
What are you guys doing on the foregrip?
I was thinking of .593" diameter from the bottom 3" up.
And then two .25" holes 1" deep 90 degrees from the mount holes on the top.

We're going to put a different foregrip on.

[AlabamaMan]

That is a funny story... We were boreing it out, did a half inch pilot hole. About 3 inches deep, and then went to a 23/32's bit and we were doing just fine until we hosed it. Turns out that 23/32's is about the exact size of the stepdown in the grip, and we went just a little to far. I wanted that pile of chips just a hair bigger. So now it's in two peices and one of them is really light. I think i'm gonna go with a Kapp 15* asa for an angel (mod it to fit) and a (light weight) gas through grip.

[than205]

Bummer.

I didn't think I wanted to get the wall thickness too small, so I figured .593" would get me at least a 1/16" wall. That should be able to take the average bump or two.

Otherwise, nice work!

PS - what is the OD at the step down?

[AlabamaMan]

I'll check when i get off work in a couple hours, but all i can say right now is to small. A rough guess would be .7" to .72".

[BlackVCG]

theraidenproject-

What kind of angle are you looking for on the front? Taking the wings off will be no problem. The only problem would be cutting that front angle, but that all depends on how much of an angle you want.

[AlabamaMan]

I was way off it's .683" or at least that is what my calipers say.

[theraidenproject]

Originally posted by BlackVCG
theraidenproject-

What kind of angle are you looking for on the front? Taking the wings off will be no problem. The only problem would be cutting that front angle, but that all depends on how much of an angle you want.

I was thinking straight from the bottom front of the rail to right before the pin for the barrel slot (I really should know the right term). Similar to pito's emag.

[BlackVCG]

TRP- Do you want just the wings in the back milled flush the section in front of the wings, or do you want the rail milled flush with the front part of the rail, which is the narrowest part of the rail. An angle from the tip of the rail all the way back to the twist lock is a pretty extreme angle. I can duplicate Pito's rail if that's what you're looking for.