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9/22/2017 12:11:25 AM
Posted: 5/9/2003 9:51:15 AM EDT
Just left ARMS, their model #58, the midlength SIR is awesome. It is immediately available, and ready to ship. It uses their car length lower handguard, w/ the addition of approximately 2-3" of alloy i/f/o that.

Amazing piece, ARMS has outdone themselves, again. Anyone w/ a midlength, awaiting the 58, run and order one you will definitely not be dissapointed.
Support this site and order through the numerous dealers over at EE, I'm not a dealer and not looking for any financial benefit, just spreading good news. Enjoy guys, I'm off to call Armalite, gotta get myself a mid-length barrel assembly.
Link Posted: 5/9/2003 8:30:53 PM EDT
[Last Edit: 5/9/2003 8:31:12 PM EDT by JerseyGunny]
WOO HOOOO! Looks like I'll be getting a SIR for my .50 Beowulf after all... BTW: Is it a slim-line, is it a bi-level???
Link Posted: 5/9/2003 11:56:35 PM EDT
sorry, yes 2x's. It slimline and bi level . W/ adapter available to make it 1 level if needed.
Link Posted: 5/10/2003 4:09:27 AM EDT
Link Posted: 5/10/2003 4:21:18 AM EDT
Wes, do you have a price from the dealer? Very nice piece.
Link Posted: 5/10/2003 8:22:09 AM EDT
any word on the full length SIR???? LittleJacek
Link Posted: 5/10/2003 8:45:34 AM EDT
Link Posted: 5/10/2003 9:04:24 AM EDT
[Last Edit: 5/10/2003 9:05:45 AM EDT by SULACO2]
Word I got was the military asked for the full length for the sbr project. ARMS gave them a choice between a large order of car lengh SIRS or the full length. They chose the larger order then, the middie, then full to follow. Last word was the full length are available as working protos. Barring unforseens the fulls should be close.
Link Posted: 5/10/2003 12:07:05 PM EDT
So this is the true SPR SIR I take it?
Link Posted: 5/11/2003 4:53:11 AM EDT
At thi point that is ARMS', understanding. Who knows what the military will change their minds to. The original SPR shoud have been the dedicated SPR SIR, but the logistics caused a compromise that became the SPR sleave and forearm system.
Link Posted: 5/11/2003 10:47:31 AM EDT
Yeah. I think I understand why now everyone says the SIR system is superior to the PRI tube. I mean, I don't understand the point of needing an ARMS 38 SWAN sleeve to your $350 carbon fiber tube etc. The SIR already has that "sleeve" of rigidity built in, etc. Whatever. I'm too damn tight to pay for match ammo. It would be a cool rifle to build though.
Link Posted: 5/11/2003 12:37:42 PM EDT
Guys, what kind of front sight would you choose for the SIR mid-lenght combo? What about the gas block? I assumed everyone wants to put the SIR mid-length on a 18" or 16" upper.
Link Posted: 5/11/2003 6:19:55 PM EDT
Link Posted: 5/11/2003 11:44:42 PM EDT
View Quote
It wouldn't be a bad idea to have a PRI front flip up. What about the low profile gas block on a 16" barrel since the SIR mid-length will cover the gas port portion anyway?
Link Posted: 5/12/2003 4:15:20 AM EDT
Link Posted: 5/12/2003 11:37:44 AM EDT
View Quote
ARMS will have one. Just my opinion. It doesn't really make sense if they have the SIR mid-length but not planning for a SIR front flip up.
Link Posted: 5/12/2003 12:45:33 PM EDT
On the flip up front sight issue, ARMS "official" response was that there is none in the works, currently, or in the near future. I didn't get the feeling this was a disinformation ploy. For what its worth, I'm not holding my breath, just waiting patiently.. They don't tend to "rush" releases either. There SIR was in development for over 6 years. SUL2.
Link Posted: 5/12/2003 2:27:39 PM EDT
[Last Edit: 5/12/2003 3:31:05 PM EDT by MSTN]
Link Posted: 5/12/2003 2:31:34 PM EDT
YYYUUUPPP!!! That's it. NICE PIC. See, told ya' ya'd like it.
Link Posted: 5/12/2003 2:34:25 PM EDT
[Last Edit: 5/12/2003 2:35:37 PM EDT by TREETOP]
Link Posted: 5/12/2003 2:55:40 PM EDT
Treetop, Ditto. Even the GIJoe, thing. Oh well.
Link Posted: 5/12/2003 3:18:23 PM EDT
Me three (on both as well)
Link Posted: 5/12/2003 7:24:28 PM EDT
You too? Yep.. I can still remember that.. five flag points plus S&H gets you hooded Cobra Commander.. How many flag points for the 6.8mm URX equipped upper? I should have three points from previous MSTN purchases already.. :P Where's Pinco? He'll appreciate a GI Joe/MSTN upper conversation..
Link Posted: 5/14/2003 5:51:23 PM EDT
Yep, those folks at ARMS are real bastards trying to satisfy all the variations of AR's that we might want a real advanced rail system for:) Good shootin, Jack
Link Posted: 5/15/2003 10:03:00 AM EDT
Link Posted: 5/15/2003 6:05:08 PM EDT
Does the installation of the SIR system require the removal of the FSB? I have RRA M4ergery and the fake flash hider is actually part of the barrel, so I can't remove the FSB. Thanks.
Link Posted: 5/15/2003 8:14:24 PM EDT
Link Posted: 5/18/2003 9:19:55 PM EDT
Are there any plans to make a civilian version of the ARMS #58?
Link Posted: 6/1/2003 9:16:15 PM EDT
Other than changing the weight what is the real reason for the "C" and "M" versions of the SIR systems? Seems everyone would want to stick with the civie version since no alterations take place. And the Military, it would seem, might prefer this as well for ease of maintanance. The #58 looks sweet!
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