Sig Cqb

edward911 said:
You should not have to remove the top rail to install the quad rail unless you have the top rail called a 'rooster' which extends over the handguards.

With the 'rooster' top rail, it makes takedown difficult for removing the handguards or quad rail.
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Rarely does one need to clean below the handguards so for an extra 5 minutes once in awhile you save about $200 bucks.

Rooster extended rail $150
Side rail $69
Bottom rail $169

= $388

Quad rail = $599

The thing that turned me off the quad rail is it doesn't line up with any add-on rail as its designed to line-up with a flat top receiver, which the TSE SA CQB does not come. Some say it jiggles too but can't say first hand.

I think the rooster extended rail option is best, you can put your optics where you like and if you want, it gets your holosight as far forward as you could with the quad rail. The only problem with the extended rail is to get one you have to deal with rooster, a guy who beats to his own drum.:runaway:
 
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MPI said:
Rarely does one need to clean below the handguards so for an extra 5 minutes once in awhile you save about $200 bucks.

Rooster extended rail $150
Side rail $69
Bottom rail $169

= $388

Quad rail = $599

The thing that turned me off the quad rail is it doesn't line up with any add-on rail as its designed to line-up with a flat top receiver, which the TSE SA CQB does not come. Some say it jiggles too but can't say first hand.

I think the rooster extended rail option is best, you can put your optics where you like and if you want, it gets your holosight as far forward as you could with the quad rail. The only problem with the extended rail is to get one you have to deal with rooster, a guy who beats to his own drum.:runaway:
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Yup, it doesn`t line up with the top rail, it wiggles slightly just like the stock handguard and it weighs more on a already heavy rifle.

Plus it doesn`t look as cool as a urban camo painted handguard :)
 
Edward911:

I should have said I took it off because I installed a Railed forend, and am not going to reinstall the B&T optic rail. I didn't take it off because I couldn't figure out how to install the rail with it in place.

Oh, Rooster33 (Lazlo)makes a short rail the same length as the B&T rail, as well as the extended rail. I have owned both the long rail and the short Rooster33 rails.

As far as the cost of the Swiss Arms railed forend, I bought it because I liked the look of it. The cost savings of an alternative mounting method really isn't a consideration for me. I like the Swiss Arms rail.
 
edward911 said:
OK...great...did not see it in your picture until I looked closer. You may need a bit more, though, hear the left end of the ejection port as I do not see any coverage with your electrical tape.

This is where most of the damage is caused by the ejecting brass. On the upper left corner of the velcro, you can see a worned in 'smiley'. This where the ejecting brass is causing the damage.

AimPoint_Right.jpg
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Actually, at the time of the picture (the day I received it) it didn't have the tape on it.
 
OZZ said:
Yup, it doesn`t line up with the top rail, it wiggles slightly just like the stock handguard and it weighs more on a already heavy rifle.

Plus it doesn`t look as cool as a urban camo painted handguard :)
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So the railed forends are not fastened? Seems pricey for something that won't let you mount an optic.
 
They fasten the same way the stock handguards do, push the pin through lower part comes off then the upper half.

You could mount a optic but the top add on rail on the receiver is much more solid and I also find a optic way out there makes it even more of a heavy piggy.

I sold the rail and went back with the top B&T rail for a Aimpoint,lower B&T for the B&T QD grip and 1 side rail for a surefire X200 .
 
Teapot said:
Anyone using the auto version in Iraq or Afghanistan? Do the Swiss actually use them or are they just novelty items?
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The SAS have used them in Iraq and Afghanistan.

and yes the Swiss military uses them.
21.jpg



and the French military...

221914831qrhYWg_ph.jpg
 
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German GSG9 uses the SG 551. They have used it for the better part of a decade and swear by the weapon. The ex member I spoke with claims it is one of the best weapons in their inventory. They put more than a few rounds through their weapons and have been on some operations outside of Germany.

The 550 and 551 operating systems are different from the 552.

Big Red, what is specifically breaking on the 552's? Is it always the recoil spring guide rod? It would stand to reason that if the metal guide broke and the weapon was continued to be fired that the bolt carrier would impact the broken, bent parts and cause issues such as possibly the cracked bolt carrier as in previous photos.

I'm just interested as I'm issued the SG552 and would like to know. So far we love the weapons. Very smooth operation and as I said before very easy to hit with. We are used to MP5's and the SG552 handels very similar. That might be one reason why we like it so much.

Rich
 
Rich LPS said:
Big Red, what is specifically breaking on the 552's? Is it always the recoil spring guide rod? It would stand to reason that if the metal guide broke and the weapon was continued to be fired that the bolt carrier would impact the broken, bent parts and cause issues such as possibly the cracked bolt carrier as in previous photos.
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That is my non-gunplumber opinion as well.
 
Rich LPS said:
Big Red, what is specifically breaking on the 552's? Is it always the recoil spring guide rod? It would stand to reason that if the metal guide broke and the weapon was continued to be fired that the bolt carrier would impact the broken, bent parts and cause issues such as possibly the cracked bolt carrier as in previous photos.
Rich
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One of the cracked bolt carriers was on my rifle and it had the spring and rod still intact, so the issue is not the rod breaking and then the bolt carrier getting smashed.

I think on one of them all of the parts broke at one which could support your hypothesis.
 
Thanks for the info, good to know.

You had said that some guys are carrying them still. How many 552's do you have in service and how many have gone down? Do you have 551's or 550's in service as well and have any of those weapons gone down?

I know you may be busy so no need to rush a response.

Thanks,

Rich
 
foxbat said:
The only exceptions to the 5 round centrefire rifle rule are the carbines that use pistol mags..i.e. Ruger PC9 and 40 models, Beretta Storms (9mm, 40 and 45 ACP), and the Olympic Arms AR series (9mm and 40) that use Glock mags..
You can use 10 rounds..
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I thought the Garand was also exempt from this limit. Then again, it's been a lont time since I checked up.
 
Rich LPS said:
Thanks for the info, good to know.

You had said that some guys are carrying them still. How many 552's do you have in service and how many have gone down? Do you have 551's or 550's in service as well and have any of those weapons gone down?
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I can't remember the exact numbers company wide on how many went down but it is quite a few. Our team had 8 originally and 6 failed. Of the white guys on our team, 5 have purchased their own M4s, 2 carry Sig with AK as backup (stupid idea), 2 carry Sigs.

SWAT brought several of thier failed 552s to us and we replaced the parts for them.

We do not issue 551s or 550s however I have carried a 551 I borrowed from SWAT for a month, no problems with it after I put in a new extractor. I think the 551 and 550 are great weapons and I wouldn't have bought a M4 if I was issued a 551. I'm hopeful that these plastic rods will turn the 552 into an equally reliable system.
 
Swiss CQB Issues

Has there been any updates with the cracked bolt carriers and broken rods?

Do all CQB's have this inherent design issue and only the 553 gas system address this?

If I understand correctly, There were only 2 of these 553 gas system CQB's in Canada today and all other CQB models have the design flaw. Is this correct?
 
Wow! that was an informative post to read, really makes me think about either getting one or not, hope it was just the ammo.
Me too curios about the end of the story, please share :redface:
 
Update,

Our 552's have been going strong for several years now. Getting towards the 10k round count. Very reliable, never jam. No issues.

This is with hi-caps and a bit of burst fire and getting them much hotter than the semi, civi, 5 round guns.

Swiss Arms is offering a 553 conversion kit for the 552 now.

All this said, I think the 553 is a bit better / more solid unit.

Rich
 
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