MidWest Industries rail install question

clandestine said:

The plate can be fit the Billet uppers it has to be filed open. Slowly and evenly. Is calipers and keep it even.

If you don't want to file you can remove the tabs but you do have to use the lower portion of the plate because it prevents the clamshell from over tightening.

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jrumann59 said:

Seems many of the self aligning have that issue when I put my diamond head on my 300blk build I had to work the tabs a little just to get some play on my Black Rain upper.

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3paul10 said:

I am not a fan of clamp on rails. I haven't used the later style of MI rail with the plate....I installed an older one without the plate....and it slid right off, no more.clamp ons for me...

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engineerbrian said:

I recently picked up a MWI Gen 3 SSK Free Float Hand guard from Brownells and hit a road block.

I didn't realize that this hand guard is not compatible with billet uppers (it wasn't listed in Brownells description) and that the torquing plate (anti rotation device?) is the piece that won't work on billet uppers. Pictures below.

I really don't want to deal with returning the hand guard, and after watching an install video on YouTube, this hand guard gets glued and screwed in place, so it makes me wonder if the torquing plate is really needed or can it be skipped?

Thoughts?

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gmharle said:

I just went through the same thing yesterday. I opted to remove a little material on the upper so that the torque plate fit. I very carefully used a Dremel and then finished with some high temp black paint.

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parttimer said:

I would go with removing metal from the torque plate. It can be replaced for less than $10 if it gets boogered up or you want to change the rail to another gun. If you mess with the receiver that is much harder to fix. Chad put one of these rails on the billit upper he assembled for me a few months ago so he is speaking from experience.

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parttimer said:

Mine is an Engage set also. FYI mag pul bad levers will not fit that lower if you were thinking of installing one. The Phase 5 setup will fit. I will try to post a pic of mine today.

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parttimer said:

Mine is an Engage set also. FYI mag pul bad levers will not fit that lower if you were thinking of installing one. The Phase 5 setup will fit. I will try to post a pic of mine today.

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parttimer said:

I would go with removing metal from the torque plate. It can be replaced for less than $10 if it gets boogered up or you want to change the rail to another gun. If you mess with the receiver that is much harder to fix. Chad put one of these rails on the billit upper he assembled for me a few months ago so he is speaking from experience.

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