Crusader Arms Crypto

owlowl said:
The upper is pivoting against the lower around back cross pin, yes? When you remove the rear pin will it pivot open? yes. Any time there is a force up or down between upper and lower there is also a force applied to the front pins. If you were to remove the front pins the rifle would flop around and open up. If it does not flop around and open up, it means that front pins are transferring a load between upper and lower and it means there is a force applied to them each time you apply a up and down.

For instance, if you hold crypt with one hand by the pistol grip and the front is handing free, upper would want to fall down and it will load rear pin A, which would give a little slack and the front pins B will receive torque.
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I see what you mean. I agree that there could be some force applied when rifle is handled. I still don't see how these could stress the pins enough to cause an issue. And during the shooting I don't see anything significant is applied to those pins. Beauty of AR design is that you can have any kind of sloppiness between upper and lower, the only two things that matter is hammer striking firing pin and carrier hitting buffer. If these two things are aligned to be able to work (and no need for perfect alignment here) - AR works.

Of course we will see in practice how our speculations pan out, but as for now I see no issues with design.
 
As far as the magazine design goes...
Coupled short magazines have been around for a while. Usually 2x10rd pistol magazines.
But...
For service rifle competition, it is standard practice to use the magazine to "monopod". Not a good idea with coupled magazines - cartridges, feed lips on the ground.
A snap on cap to cover and protect the bottom magazine would be a very useful accessory. Or even a five round magazine with a boot to give it the length of a STANAG 30.
I expect that the Crypto is going to see service for service rifle competition next season (unless the Liberals ban it before then). It should be an excellent replacement for the AR-15 type rifles formerly used by most all competitors.
 
I wouldnt touch these as built rifles from the company. When they come out as rec sets thats when its time to pick one up if they make it that far. Regardless still a better option than the raven, thank god they went with a basic looking rec set that doesnt take proprietary garbage bcgs, and didnt make it look like video game garbage with lame machine cuts and a side charger like the raven.
 
owlowl said:
The upper is pivoting against the lower around back cross pin, yes? When you remove the rear pin will it pivot open? yes. Any time there is a force up or down between upper and lower there is also a force applied to the front pins. If you were to remove the front pins the rifle would flop around and open up. If it does not flop around and open up, it means that front pins are transferring a load between upper and lower and it means there is a force applied to them each time you apply a up and down.

For instance, if you hold crypt with one hand by the pistol grip and the front is handing free, upper would want to fall down and it will load rear pin A, which would give a little slack and the front pins B will receive torque.

View attachment 815242

Moreover, there are 2 pins which will give differently and this will make it worse. And there is different loading on each when you twist upper and lower from side to side.

If anything join B should be the pivot against longest shoulder of force L, but it is the opposite. It it is all applying force on pins which are fixed into lower by like 3mm and a glue.
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If you think the Crypto is bad have you considered what the little aluminum tabs of an AR go through during bayonet training?

What a terrible design that is sure to fall out o
tiriaq said:
Receiver sets are available. $995.
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Had mine for weeks now.
 
Gunnerlove said:
If you think the Crypto is bad have you considered what the little aluminum tabs of an AR go through during bayonet training?

What a terrible design that is sure to fall out o

Had mine for weeks now
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I would be glad if your irony was appropriate. But I think there is a bit of misunderstanding. I'm talking about steel pins which are pressed and glued into lower to break loose. I'm not in a mood or a position to argue about it over and over again. So time will tell.
 
owlowl said:
I would be glad if your irony was appropriate. But I think there is a bit of misunderstanding. I'm talking about steel pins which are pressed and glued into lower to break loose. I'm not in a mood or a position to argue about it over and over again. So time will tell.
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Ever used a CAV lower. Or are you missing that decade of experience with ARs?
 
Gunnerlove said:
If you think the Crypto is bad have you considered what the little aluminum tabs of an AR go through during bayonet training?

What a terrible design that is sure to fall out o

Had mine for weeks now.
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Can you comment on the material thickness, at the bolt release paddle, on the relief cut into the upper? Some have wondered if it would be pop can thin as it was on at least one Templar.

My rifle is inbound.
 
Gunnerlove said:
Ever used a CAV lower. Or are you missing that decade of experience with ARs?
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How is this relevant to the point I'm making? How is a polymer lower with a CONVENTIONAL front pin through a lower side to side is any relevant to the discussion of crypto lateral pins fixed in the lower?

1725895666026.png

this already happened. Loctite might make it last a bit more, but in general it is a pointless battle. You are loading steel ridged pegs up and down by one end while they are pressed fit by the other end by a few mm into 6061. Thermal expansion is different for 6061 and steel, you take the rifle from -15 to +35 the pins will contract and expand differently from the surrounding 6061. If they are not absolutely perfectly aligned and holes are not perfectly aligned - there will be a misaligned stress to a side of one or another... Practically everything you can think of in this arrangement is trying to break these pins loose from the lower. Would you see these pins break in half? No. Would you see upper or lower holes tear or shear apart? No. But one of the pins will fall out and it will be a pain to fix it back.
 
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