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Sig Sauer R556XI16BC Sig556xi Standard SA 223/5.56

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Model: R556XI16BC
Condition: Factory New
Bud's Item Number: 90540
UPC: 798681468461
MFG: Sig Sauer

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The Sig556xi by Sig Sauer provides unparalleled modularity in barrel length, caliber, magazine type, and stock configuration. It features a 3-position adjustable gas piston operating system with a rotating bolt, a Swiss-style folding stock with removable cheek riser, ambidextrous controls, locking flip-up sights, and a polymer handguard compatible with Magpul MOE accessories. This model accepts any Mil-Spec magazines compatible with the lower.
Finish Black
Action Semi-Automatic
Caliber 223 Remington/5.56 NATO
Barrel Length 16"
Finish Chrome-moly Blued Barrel
Action Break Open
Caliber 7 mm STW Mag
Barrel Length 16.4"

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Product Reviews
11 Reviews. Average Rating: 4.6 of 5 Stars! [4.6 of 5 Stars!]
5 stars:
82% (9 of 11)
4 stars:
0% ( of 11)
3 stars:
18% (2 of 11)
2 stars:
0% ( of 11)
1 star:
0% ( of 11)
Reviewed By: christian C on 10/12/2016 Rating: 5 of 5 Stars! [5 of 5 Stars!]
An extremely fun shooter and another typical over-engineered product from Sig. The only gripe is Sig's owner's manual. Its detail, font size and general vague references and indicators, force you to rely on the website and Youtube. I'm not even that old, but I can barely read it! Still, a superb handling rifle and will be a keeper.

Bud's transactions are always flawless though.Good people and good prices.

Thanks all.

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Reviewed By: johannes u on 07/08/2016 Rating: 5 of 5 Stars! [5 of 5 Stars!]
Really love this rifle. I just got back from the range and show my first 100+ rounds with it. No issues at all. I am using a Strike Eagle 1-6 scope that I had quickly sighted in with a laser. The first 30 rounds landed all in the black silhouette of the 25 yard target. No malfunctions at all (as it should be). I used the magazine that came with the gun (don't really care for the flimsy looking metal magazine) as well as two different Magpul PMAGs. No issue with either.

After receiving the gun, I removed the white grease (lithium grease?) that Sig had applied at the factory. It was too heavy for my taste and I just used regular CLP and let it sit for a couple days.

There are plenty of reviews of the gun, so nothing new here. People seem to either hate or love it. I love it.

I wasn't terribly happy with Buds. Took forever to ship the gun. But that isn't the gun's fault so still 5 stars. (maybe 3 1/2 for Buds)

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Reviewed By: Yaman T on 03/24/2016 Rating: 5 of 5 Stars! [5 of 5 Stars!]
I have just started dealing with Buds not too long ago and their customer service and professionalism is nothing like I have experienced around here ! simply EXCELLENT !!!!!!!!!!!!

so far I have shot about 800-900 rounds with the 556 xi and if I had to do it all over again I would buy the same gun again, it so far has worked flawless, accurate , shots amazingly well. The built quality is excellent and the gun feels great .... very easy to disassemble and clean. I will be buying the Russian version of this very same gun ........

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Reviewed By: Zachary O on 01/16/2016 Rating: 5 of 5 Stars! [5 of 5 Stars!]
I purchased this rifle about a year ago from Bud's, using the layaway program. I have to say, that layaway program is pretty great. Anyway, I got the gun in and had it transferred over, everything was fine. I took it home, unboxed it, and inspected it thoroughly. First thing I noticed right off the bat was the large crack in the stock, hidden under the cheek guard. It looks like the rifle was either dropped somewhere along the way, or they had a damaged stock and just said screw it and put it on the rifle anyway. I don't really care, it's just a crack and doesn't seem to be enough to warrant a replacement stock or anything like that. I just found it odd that the entire rifle came in pristine, and I mean right out of the factory pristine, condition and I take this plastic piece off and there's a huge crack. Oh well.

The rifle shoots pretty darn well. As stated in other reviews, it doesn't like Tula very much. Had two light strikes the first time I took it out to shoot. I blame the ammo, not the rifle. Tula is known for having crappy primers. It went through Remington like it was going out of fashion, no hang ups, no misfires, no cycling issues.

Not a bad choice for a mid-range rifle. It's no SCAR-16, but you're not going to have to take out a second mortgage to afford it. It just feels... like quality. Except for the cracked stock, which I would probably replace with a Magpul extending folder or something anyway, I am very, very happy with this as my first rifle. Bud's got it to me quickly (a week or so to my local FFL), and it was in good shape. Love it.

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Reviewed By: Josh B on 04/02/2015 Rating: 5 of 5 Stars! [5 of 5 Stars!]
Fantastic rifle. I have no complaints whatsoever on the function and accuracy of this rifle. I do however have a problem with the stock mag. I have had at least one FTL on every instance using the aluminium stock mag, packed with between 6 - 30 rounds. However, my PMags and others operate flawlessly.

Other than the stock mag issue, everything on this gun is very sound and great value for the price. Please ignore the bad reviews about heavy trigger pull. The rifle intentionally operates on a two stage trigger, and some folks just can't fathom that concept.

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