September 18, 2012 by  
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We are proud to offer a selection of high quality fighting rifles.  These are the finest fighting rifles available in the world and I would gladly trust my life to any of them.

SIG Sauer

SIG 556R

The SIG 556R is the Mercedes-Benz of Kalashnikovs.  It melds the traditional AK caliber and operating system with Swiss precision design and manufacture.  As rugged and reliable as any AK, with the fit and finish of the best fighting rifles in the world, the SIG 556R takes the most successful rifle design in history and brings it into the 21st century.

Buy the SIG 556R at One Source Tactical

SIG 556

Based on the original SIG SG 550 service rifle design, the SIG 556 combines the Kalashnikov operating system with the 5.56x45mm/.223 round.  The SIG 556 accepts the ubiquitous AR magazines, including the excellent TSD Combat Systems MAG15.  The 556 brings legendary AK reliability seldom before seen in a .223 caliber rifle.  The SIG 556 shows the M4 what it is not and could never be, and shows the AK what it could have been if its builders cared.

The SIG 556 comes in several models, all available at One Source Tactical:

SIG 551A1

For those who appreciate the lines of the classic SIG SG 550 rifles, the SIG 551A1 takes the polymer SIG 550 magazines.  This is the closes you can get to the classic Swiss Sturmgewhr 90 service rifle.

Buy the SIG 551A1 at One Source Tactical

SIG 516

If you want SIG’s quality and reliability, but prefer to retain the AR-style controls and ergonomics, look no further than the SIG 516.  This is the ultimate development of the AR platform.  The 516 is built around an advanced gas piston system, with an adjustable gas valve for shooting suppressed or overcoming a dirty rifle or low quality ammo.  It features an ambidextrous magazine release, free float barrel, and a lightweight quad rail handguard.

Buy the SIG 516 at One Source Tactical

SIG 716

Sometimes you need the reach and penetration of a true full power rifle round.  The SIG 716 combines the reliable piston design of the 516 with the power of the 7.62x51mm.  As with it’s little brother, the 716 features an ambidextrous mag release, free float barrel, and quad rail handguard.

Buy the SIG 716 at One Source Tactical

FN Herstal


The FS2000 offers a full power rifle in a package that’s closer to an SMG than a traditional assault rifle.  It is ideal for use in confined spaces like vehicles and inside buildings, yet we’ve gotten hits with it out to 500 yards and beyond. The forward ejection system makes this one of the few fully ambidextrous bullpups.  Combined with the excellent balance, that makes this rifle exceptionally well suited to the Suarez International rifle CQB curriculum.

Buy the FS2000 at One Source Tactical

Hands on with the FS2000

November 15, 2012 by  
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by Chris Upchurch, Suarez International Director of Marketing

I have to admit, it took a while for me to really warm up to the FS2000. When one came in for Gabe back in August, my first thought was ‘wow, what a space-gun looking thing’. I handled it a bit and it seemed very odd and unfamiliar. It just has such a different layout and different controls that it was way outside my previous experience. As much as we make of the difference between, say, an AK and and AR, they both use basically the same layout. By comparison a bullpup, particularly one like the FS2000, is pretty out there.

A few weeks after my initial encounter with the FS2000 we were out shooting some video on the SIG 556 rifles. Gabe also brought along his FS2000 and I had a chance to shoot it. It still seemed a bit strange, but I have to say it shot nicely and handled well. Gabe was pretty enthusiastic about the rifle. This really made me take another look at the concept.

Towards the end of September we got some FS2000s in stock at OST. I’d been thinking more and more about it, and Tom made me a pretty good deal on it, so I decided to buy one. At this point I was thinking that this would be a bit of a specialty rifle for things like CQB and vehicle operations where its short overall length would really be an advantage.


That weekend was the Guerrilla Sniper II class. Gabe brought his FS2000 along, topped with an ACOG and fed some 75 grain match ammo. Using this configuration both he and I got hits out to 500 yards. This using a rifle that’s shorter than many SBRs. At this point I was starting to broaden my thinking about this little rifle and appreciate its capabilities.

The following Monday, I picked up my own FS2000. Shooting it would have to wait a bit until I picked up some .223 ammunition, but I immediately began doing some dry work with it.

While the obvious feature of a bullpup is it’s short overall length, the thing that really grabs you when you pick up an FS2000 is how well balanced it is. It balances right at the handgrip, making it exceedingly easy to shift it from shoulder to shoulder. You can even shoulder the FS2000 one handed, which really opens up some interesting possibilities when getting off the X.

The FS2000 is very compact. Despite having a 17.4“ barrel, it’s roughly the same length as a SBR with a 10” barrel. This makes it exceedingly well suited to CQB, vehicular operations, and other situations involving confined spaces. I’ve practiced clearing my house several times with the FS2000, something it is exceedingly well suited for. It has the capabilities of an SBR, without all the NFA paperwork. In tight places that are a problem for a full length rifle it eliminates the difficulty. I’ve also played with this a bit from the inside of my car. It’s manageable even in a mid-size sedan.

Despite it’s rather different control setup, conceptually the FS2000 runs much like the AK. To load, mag in, run the bolt (make sure you give the mag a tug to ensure it’s seated). There is no last-round bolt hold-open, so you’ll get a click instead of a bang when the mag runs dry. Mag out (just hit the mag release with the top of your index finger as you grab the mag) new mag in, run the bolt.

One of the most important things that training with (and teaching for) Suarez International has taught me is the vital importance of complete ambidexterity. It’s gotten to a point where not being able to run a weapon on either side is really a deal breaker for me. Most bullpup systems don’t work particularly well from the support side shoulder. There are ways to adapt to this, but they’re not really what you’d call optimal. The FS2000 is an exception to the general rule. With it’s forward ejection system, it works equally well from either side.

The charging handle is on the left side, so it’s very easy to run when you’re shooting from the right shoulder. Running it on the left shoulder is no problem, it’s like a mirror image of how we run the AK charging handle. The mag release is located just forward of the magwell and is completely ambidextrous. The magwell location takes a bit of getting used to, but once you do, mag changes are very natural. The bottom inch or so of the magwell is beveled into a funnel, making it very easy to guide a mag in.

Perhaps the most unusual of the controls is the safety. It’s a plate at the base of the trigger that pivots right and left. The design is rather clever, allowing you to push or pull from either side. To take the rifle off safe, you push with your right finger or pull with your left. To put the safety back on, pull with the right or push with the left. This definitely does take some getting used to.

One change I made to the rifle was to substitute a tri-rail handguard for the plastic handguard that comes with the gun. One of the big reasons I did this was to allow for a light mount. I intend to use this as a house gun (among other things) and in this role a rifle really needs a light. The railed handguard also allows for a vertical foregrip. On most conventional rifles I’m not a big fan of the VFG, because of the way it interferes with the floating support hand. On the FS2000, however, there’s really only one place your hand can go, given the short fore-end. Since the FS2000 doesn’t have a magwell in front of the handgrip, the VFG effectively replaces it in some of our weapon manipulations.

With a big pile of ammo in-hand I headed out to the range to put this rifle through its paces. I didn’t have an optic on the rifle yet, so I was working with the iron sights. It comes with a picatinny rail mounted front sight and a small flip-up rear. I shot at 100 yards and found I was a couple of inches high, so I figured it was zeroed at a closer distance. When I stepped up to 50, everything was dead on, no adjustments necessary.

The flip-up rear sight is definitely intended only as a back up. With it’s full picatinny rail this is a rifle that’s clearly intended to run an optic. While it’s performance at the GS class clearly shows this gun is capable of reaching out quite a ways, it’s mainly going to be a CQB gun for me, so I’d decided to mount a red dot on it. I had an Aimpoint Micro lying round, which I teamed up with an American Defense QD mount. This arrangement provides a cowitness with the back-up irons just below the center of the optic. I prefer this kind of optic mounted forward, so I put it just behind the front sight (Gabe, on the other hand, prefers it mounted to the rear, and on pictures of his rifle you’ll see it mounted just in front of the rear sight).

Moving up to about 5 yards, went to work on some point shooting. The front sight assembly works well for Caveman EOTech, and the picatinny rail provides a nice reference point for shooting while looking over the top of the gun. Where it really gets interesting is when you rotate the gun over about 30 degrees. The edge of the receiver is a nice straight line running parallel to the bore. It makes an excellent aiming rail, similar to aiming down the edge of the slide with a handgun. This is particularly nice since the gun tends to roll over like this when shooting one handed. It also provides a great point shooting reference when the top rail is occupied by an optic. In a way, it’s kind of like the offset optic mounts some gun gamers use on their rifles, except these are ambidextrous. The FS2000 is exceptionally well suited to point shooting.

Combine this point shooting ability, excellent balance, and ambidexterity and I think the FS2000 may be the ultimate rifle for the SI close-range rifle curriculum. It handles GOTX angles that are challenging for other rifles with ease. When getting off the X on the rearward lines (5 o’clock and 7 o’clock), it’s easy to roll the rifle over a bit and shoot at some pretty extreme angles. Taking the forward angle on the support side, the gun is so well balanced that you can fire the first few shots one handed with the stock on your primary side shoulder. As the angle gets more extreme, the excellent balance makes this one of the easiest guns to swap shoulders with. I can’t wait to take this gun to Roger Phillips Long Gun Point Shooting Progressions class. I think it may be the ultimate LGPSP gun.

Given its short overall length, the FS2000 really shines in confined spaces, like buildings and vehicles. That said, unlike an SBR this is not just a specialized CQB tool. As Gabe and I proved at the GS class, the FS2000 can do anything a full size 5.56mm rifle can do, including reaching out to extended ranges. This is an extremely versatile rifle, capable of filling a lot of different roles.

The SIG 556R

October 16, 2012 by  
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The SIG 556R is the Mercedes-Benz of the Kalashnikov world. It melds the traditional AK caliber and operating system with Swiss precision design and manufacture.  As rugged and reliable as any AK, with the fit and finish of the best fighting rifles in the world, the SIG 556R takes the most successful rifle design in history and brings it into the 21st century.

The two-stage adjustable trigger is among the nicest stock triggers I’ve encountered on a fighting rifle. The Swiss made side-foldings tock is simply exceptional, with a rock solid lockup. When the stock is open, it feels like it a fixed stock, yet when you depress the release button, it folds easily, with a latch to keep it folded.

Field strip the SIG and its Kalashnikov heritage is obvious. Put the bolt side by side with an AK and you’d have a hard time telling which was which at first glance. Combine this with a two-position gas valve with a second setting for harsh conditions and you have an exceptionally reliable rifle.

The polymer handguard makes for a light front end. If you need to attach a light or other accessory, the rifle comes with picatinny rail sections that can be attached at the 3, 6, and 9 o’clock positions.

The 556R has accepted every steel AK magazine we’ve tried in it. It also accepts many polymer magazines (some Bulgarian mags may require a bit of modification). Unfortunately it does not accept the US PALM AK30 magazines, as they are too wide to fit in the magazine well.

Recommended Accessories:


Video of the FS2000 in Action!

October 16, 2012 by  
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Mobile users see video.suarezinternational.com

Video of the SIG 516 in action!

October 15, 2012 by  
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The SIG 556R out to 400 yards

October 3, 2012 by  
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