1911 80% Long Dust Cover Frames

[MosinVirus]

Hello all,

Since I have had the pleasure to see both the 1911 builders and VytamenC long dust cover frames at this point, I wanted to share a few things.

What we know now is that these frames are a bit wider than other 80% frames out there. As such they may not readily fit into the Decking (Long Dust Cover ones) or Rail Cutting Jigs from Matrix (not sure about 1911builders jigs).

While VytamenC frames are not ready yet, the one I saw had a bunch of other stuff that needed to be done to it which would be difficult without a mill, I will not be bringing those up here.

But there is some more info I passed onto 1911 builders about theirs:

1. The guide rod channel in the bottom lug slot of the frame is smaller diameter than any guide rods I have tried. The opening is also not chamfered.




2. Grip Screw bushing holes were set a tad close to each other, making it very difficult to slip a grip panel onto the bushings. Possible, but difficult. We are talking a few thousandths, but still something that should be fixed.

Anyone else have got them? What are your findings?

[InlandViking]

The guide rod area is the same on my L 10 frame.. I have a guide rod that doesn't have the centering lug thingy... Don't remember where it came from though..

[MosinVirus]

I have a reamer coming and a rod to use with my 45 degree cutter. We will see what I can do about opening that up.

[BucDan]

I've been busy these past few weeks, I'll try to work on my frame this weekend.

Mosin, where did you hear that the frame isn't fitting the rail cutting jig?

[MosinVirus]

There was another thread here not long ago. The frames are wider than usual. About .765 vs the usual .758

So, if you take into account how snug the decking jig fit those usual frames and take into account that when you place them into the rail cutting jig carrier with almost no play, I doubt extra .007 will fit.

I know Matrix did open up one of their decking jigs for a customer and calgunner here with that issue.

[pklin1297]

Knowing David, he probably started contacting all of his long-dustcover jig customers asking if they've had problems. BucDan, if you find tolerance issues with your jig, just drop David an email. He'll take care of you now that this issue has come to light.

[9mmContagion]

My full dustcover fit in to the decking jig, but it was VERY tight... I haven't got a chance to check the guide rod fit in the frame though. Guess I better, as everything is about finished up with mine.

Looks like we are doing very similar builds, MV. I'm doing a full length dust cover, slab side slide, 9mm bull barrel, full length guide rod, etc. Your progress looks great! Can't wait to see the final product. This is my first build, so I'm sure it won't be as nice as yours

[Sigsour7]

tagged

[BucDan]

Mosin, Pklin, I was the calgunner he helped a while ago, that you're both referring to lol. I sent the frame and hug in for him to retake measurements and he opened up the decking jig for me. If it's tight on the rail cutting jig, I'll just sand it down on his rail stoning jig.

[pklin1297]

I thought that was you, so I was a bit confused why you were asking the question, but then I noticed you were asking about the rail cutting jig...

If the frame width is good and matches with your slide, it is better to ask David what he can do with the jig cart on the rail cutting jig than touch the frame and create loose tolerance...

[BucDan]

I'll have to check. Ever since I got the parts back from David, life has been getting in the way. Haven't had time for myself in a while.

[MosinVirus]

... I sent the frame and hug in for him ...

Figures... He gets hugs, I get called Morin.

LOL. Couldn't resist.

[BucDan]

Haha, oh geez. Damn auto correct.

[9mmContagion]

I thought that was you, so I was a bit confused why you were asking the question, but then I noticed you were asking about the rail cutting jig...

If the frame width is good and matches with your slide, it is better to ask David what he can do with the jig cart on the rail cutting jig than touch the frame and create loose tolerance...

1911 builders sent a little riser with my matrix jig to cut the top frame width as it was .006 too large for my slide and wouldn't even fit in the Matrix car. I wasn't impressed with the results, and wish I would have just thrown on the mill, but hindsight is 20/20. I did have to insert/remove my frame in to the decking jig from the top as well, due to the oversized 1911 builder frame

[cooper74]

...

But there is some more info I passed onto 1911 builders about theirs:

1. The guide rod channel in the bottom lug slot of the frame is smaller diameter than any guide rods I have tried. The opening is also not chamfered.

2. Grip Screw bushing holes were set a tad close to each other, making it very difficult to slip a grip panel onto the bushings. Possible, but difficult. We are talking a few thousandths, but still something that should be fixed.

Anyone else have got them? What are your findings?

1. tested a few guide rods, you're right the frame is tighter, did find one that works - a dawson tool-less guide rod

2. the grip screws are tighter for sure, I have two different sets of alumagrips - one fits perfectly, the other is too tight. a set of trp sandpapers snap on but are snug, DSpermans fit but a little snug, & a set of old vz gunners that fit perfectly on one side and a little snug on the other - think these have been shot alot so maybe a little looser than new.

will measure width and check if they fit in matrix's car