Do you remove the whole unit from the receiver everytime you clean your rifle or do you just remove the bottom handguard take it from there?

I don't see why you'd have to remove it for each cleaning so I'm just treating it as a permanent part of the upper.  I will probably just check the screws and make sure everything is secure.  What do you guys think?

I think you should of bought a FF RAS.

But thats what I think.My $.02

Jm03

Jm03,

Oh, now you tell me!!![:D]

Yeah, but does the FF RAS do this?[;)]

[img]http://a8.cpimg.com/image/28/C7/19917608-5942-02000180-.jpg[/img]

No,

But my RASII will.[^]

Keep,em in the 10 ring

Jm03

The RASII is a sweet rail system, if the ARMS 50 wasn't out I would have got it instead.  I may still buy one...[:D]

Why not get the M version?

No flames, but isn't it better to freefloat the bbl?

Both versions free float the barrel.  The M version requires armorer assembly, the C requires a penny.  

I know the initial SIRs procured by the Army were C models.  I don't know when or if they went to the M model.

-- Chuck

Armorer? Last one I helped put on was pretty easy. Just have to remove the delta ring whereas on the C you dont.

Yojimbo, when they convinc you to  KAC of some kind, I'll take that SIR. [;)]

Yes, Chuck is correct both the C and M models free float the barrel and both install with a barrel nut yoke so both are also equally secure.

IMHO, the C is more versatile because you can leave the delta ring on and switch to different handguards, RIS, RAS, RASII, etc.  

Yes, it's easy to cut the delta ring off but when if you ever need to put it back on you'll have to take the barrel off.  Something to think about...

If I'm  feeling crazy[:o)], I can go to this config and back to the SIR in a flash![;)]

[img]http://a6.cpimg.com/image/70/D2/19917936-d7a4-02000180-.jpg[/img]

SULACO2,

I have no plans to get rid of the SIR. [8D] [:D]

I don't think any slim line carbine versions are available in M version yet.

From my understanding the US Military is more in favour of the C version...

Perhaps SULAC02, or 3RDTK can enlighten us further.



As for the original question - why would you remove it?
IF it got really really dirty I might consider it - but odds are I would shower it/ maybe Varsol Bath it (well if it was not my personal gun...) and lube it with CLP generously and then wipe it off.


-Kevin

Thanks KB,
The slimlines are in fact currently available in "M" versions.  The #59 and #58 are both slim, and are both "M" models and I really like both of mine [;)] .  While I like, for some reason, the idea of a "dedicated" upper, I also like the idea of modularity.  I do not like the fact that, however unlikely, should a SIR that's dedicated, "M", "go" or break in the field, a coin wouldn't cut it.  In wcs's I would like to know the weapon could be put back into service simply by ripping off the forearm and canabalizing another weapon.  Even if that means losing a SIR/RAS, and throwing on the std. forearms.  I am surprised that the military went away from modularity in that sense.  And wonder why, if the "C's" are  fundamentally the same as "M'S" except for their difficulty/ease of installation why the Mil. would choose the "M".  Unless, true to form the Mil. had some, aversion to the idea of the "line soldier" (I know "line soldiers aren't getting these SpecOps are") dismantling/reconfiguring in the field.  You and I would rather a soldier/marine/sailor/airman, survive and do what needs to be done in the wcs, but that makes a little too much sense for Mil. planners.

I would tend to agree w/ KB in that the military will probably adopt the "C" SIR, (ironic, huh?) if it goes w/ the SIR over KAC's next evolution, at all.  

Oh and BTW, can't speak for everyone, but I don't collect tanks. [;)][:D]

Can anyone help out with some reasons on why the SIR "M" model ever even came into existence?  Seems there are no truly valid reasons for this "remove the Delta ring" thing unless you think losing that tiny bit of weight is really that helpful.  Other than that what is the Dif.?  grenade launcher mounting?, etc...???  Or was it a "prototype" that ARMS thought would make it.

I guess I don't get it either.

If you can float the bbl with either version, the C or the M,  why would anybody go with the M version over the C version.

Break it down for me please.

Also, how big a difference is it between the slimline and the regular version.

I need a bi-level for a Bushy with a 16" bbl.........

HELP PLEASE!

I'd like to see the slime-line #58 & 59 versions, since all I've seen were -C config. ones.

Go here:

http://www.weaponforums.com/forums/topic.html?b=7&f=22&t=169655

and...

http://www.weaponforums.com/forums/topic.html?b=7&f=22&t=161745

And finally...

http://www.armsmounts.com/new.html.

Sorry, if I was good w/ that pic. posting thing, I would have.
SUL2

[url]http://www.weaponforums.com/forums/topic.html?b=7&f=22&t=169655[/url]
[url]http://www.weaponforums.com/forums/topic.html?b=7&f=22&t=161745[/url]
[url]http://www.armsmounts.com/new.html[/url]