I'll let you know in two days.

I'll be getting some more trigger time on the SCAR-L and this time the SCAR-H should also be there.

The best I can remember, it's aluminum, but I could be wrong.

 

The color difference would suggest that the top is alu and the bottom is polymer. I don't see why they would make the top and bottom different colors if they would both be the same.

 

looks like alumuin to me

 

This is a HK G36C, which I know is polymer.....

 

It is awfully difficult to get things to annodize to the same color... that's why your colors may not match perfectly.

 

the lower looks like it was cast and the upper is cnc machined, or at least it looks that way

 

Gimme a couple of days.....patience people. :?

 

I say, and previously said, that from the picture of the wear on the lower, it 100% looks aluminum.

 

That looks an awful lot like polymer to me.

Either way, the lower will be a low stress item, so it's not a deal breaker either way I suspect.

 

It's no deal breaker for me either, and it literally makes ZERO difference to me either way other than just wondering what it is :-D

I'm getting one regardless.

 

It could be pressed clay for all I care. If FN puts their name on it, and our boys are sending the enemy to meet Allah with them, I'm buying two.

 

Just got back from the class, it was awesome.....lots of pics to follow.

The lowers are indeed polymer.

 

Just got back from the class, it was awesome.....lots of pics to follow.

The lowers are indeed polymer.

Thanks for the clarification, patiently awaiting those pictures!

 

I handled the -L a few months back, & the lower was definitely poly, no question. I think the Al lower claim may be a mis-print.

 

Thanks for clarification. There was a hefty errornet rumor FN switched to a forged lower to address durability issues.

The one issue I have though is the SCAR is still sorta heavy with a 14" pencil barrel and plastic lower. I plan on SBR'ing my SCAR like I did my XCR so I will get the weight down either way.

 

Alu or Polymer lower frame does play a role...at least theoretical.

The attachment point between the lower frame and the grip is held with aprx. 1,2" long screw like the AR15 layout. If the lower receiver was made of alu the torsional force between lower and grip would be less compared to a polymer lower which is more flexible pr. nature.

Practically, as long as no one has experienced a grip breaking, then it remains theoretical. But from the mechanical point of view, I think IMHO the materials plays a role when its put in context with the grip attachment to the lower frame.

 

Wow...Did you check the date on this thread?

 

...if I worked for FN SCAR, I would make the lower stronger than polymer only because I know the grip is connecting to this structure. But again if I worked at FNH I would also increase the length of the frame's base that connects to the grip. In this way when grabbing a rifle, the user actually holds on the frame and not on somekind of a "lever" (grip) that connects to the lower frame (theoretically easier to break).

If you disassemble AI AW chasis and SAKO TRG, you will notice the structural engineering is far superior in AI AW compared to SAKO's TRG. Because the sakos barrel and action bolts to the frame (like scar lower to grip) and the AI AW's barrel is bolted directly onto a rigid structure where the side scales are non-important, even if they break. Not so with the TRG. It is in these engineering details a product shows superiority over another that most people never realize.

 

Do you own a SCAR? If you do, I invite you to do a video and post it in its entirety while trying to break the grip free of the OEM polymer module with your bare hands.

My TRG rifles never failed me and you're only looking at the fasteners. Look at the design of the receiver and then maybe then you'll understand why it's designed the way it is. That is, if you own a TRG...

-SS

 

Hi there SS,

I'm not interested to start a discussion with you, especially not because I have pin pointed the fine balance between "theory" and "practice" where the "theory" was from an mechanical/engineering point of view. So I don't understand your defensive attitude at all.

Let me give you an example. The elasticity of materials also known as "Young's Modulus" indicates a materials ability to stretch. Now every single material can be stretched. However just because every materials have the ability to be stretched doesn't mean we can see it with our naked eye. And just because we can not see them, doesn't mean it doesn't exist. And equal is the SCAR grip. Just because I as an individual can't break them doesn't mean it can't be broken MORE EASILY compared to a construction that is designed stronger.

Now rather if we need this design toactually be stronger or not is another story. This is why I said "theoretical".

I not own TRG, but was a happy owner of an AI. I do not own a SCAR, but I'm working on it. I do own a AR15 with a similar grip to lower design attachment.

But I don't see why a person has to own something before they can have an opinion of it. Many engineers doesn't own and will never happen to own the product they design, but they sure know more than many owners of the very same thing. So this kind of reasoning is weak.

 

Seeing as I own both SCARs and a TRG42, I can comment from first hand experience - not speculative pondering. Being 6 foot tall (standing erect) while I drag my knuckles on the pavement, and weighing in at 225lbs. I cannot break any part of either weapon without the aid of some sort of tool. Theory, global warming, aliens, Bigfoot, and the Bermuda Triangle all fit in the same discussion, sans the SCAR trigger module...

I'm not being defensive at all. Being realistic, yes.:?

-SS

 

Where I live I don't have access to SCAR parts/rifle. So I must buy in some spareparts now where I'm at it. Can you tell me the most common failure parts for the 17S?

 

...and you are not a moderator or an admin, and judging by the way you've talked down to members, you have no room to point a finger at Ballgame.

-SS

 

I shared an observation he had just done the same thing to me in another thread and a new member ought not have to deal with it....I couldn't give a damn what he says to me...and as for your comment...pot meet kettle....

 

:-o got the popcorn.

 

600 - "Well I gotta say something right?"

Actually, you don't.

Also applicable to other members as well...

 

:th_nothingtoad:

 

I swear some people have missed their meds this week...

 

This thread is off topic for sure. :-x