Other models feature folding only stocks. The stock is polymer, and is both folding and collapsing on my model. The trigger guard can hinge open to be used with heavy gloves something I imagine comes from the Swiss school of design. The pistol grip is quite large, nearly SAW sized which I love because I have huge hands, but others may find uncomfortable. The safety is easy to reach with the thumb, and in my opinion easier than the AR safety to access. The mag release is traditional AK style, meaning the mags do have to be rocked in place. Everything works the way you’d imagine it would, nothing revolutionary. The safety and magazine release are completely ambidextrous, but the charging handle is right hand only. The ergonomics are familiar and easy for most shooters. I’ve never had a need to do this, but life is about options and this is a nice one. If you are running it hard, and it starts to sputter you can also adjust the gas system to allow more pressure to cycle a dirty rifle. Reliability wasn’t an issue, even after a long day, multiple shooters, and a few hundred rounds. The gun also digested everything from steel cased Tula and Wolf to brass cased Winchester PDX defensive ammo. Regardless of the magazine they all ran reliably. The Magpul magazines seemed to fit the tightest of the polymer magazines, and the only loose magazine was the Korean metal mag. I’ve also ran cheapo Thermolds, Tapco, and Magpul polymer mags through the gun with zero malfunctions.
I’ve ran Korean, Chinese, Romanian, and Russian steel magazines without issue. The SIG 556R can take any and all AK magazines I’ve tried. You can get the second stage to about five pounds with a little experimenting.
SIG SAUER 556 RAIL TRIAL
You can adjust for the second stage via a small plunger behind the trigger, which requires a little trial and error. There is very little take up, and overall the trigger is smooth. Sig list’s the trigger at 7.75 lbs, so it’s standard for military rifles. Luckily the trigger pull is pretty short. What may hamper some shooter’s accuracy is the heavy, two stage trigger. It shined due its low recoil, and how quickly you could transition from target to target. We ran it through failure to stop drills on one and then two targets. I have no doubt the SIG 556R can achieve 1.5 groups from a rest and even smaller groups with high quality ammunition.Īt ranges between 7 and 25 yards the weapon proved capable with hammer pairs, controlled pairs, and a variety of close quarters drills. I was able to squeeze out 2 to 3 inch groups on average in a prone position at 100 yards with iron sights and Tula ammo steel case. Accuracy is where this thing really shines over the AK 47. Recoil is lighter than an AK, and rapid fire strings are very controllable. I’m not a big fan of this new trend of not including iron sights with rifles, especially premium rifles. The weapon does come with a cheap SIG red dot, so you at least have some kind of sights. The weapon didn’t come with iron sights, so I installed a pair of low profile LPA sights. The overall length is a little under 36 inches and the barrel is a standard 16 inches. The rail does make the weapon front heavy, but at 8 pounds it’s not bad.
The rifle weighs 7 pounds standard, but as you can see mine has a Troy battle rail which adds a little more than a pound. Like the AK it’s a piston rifle, so a buffer and buffer tube are not required. The SIG 556R has quickly become my favorite rifle since as an AK fan I have dozens of AK magazines, and thousands of rounds of 7.62 x 39.
SIG SAUER 556 RAIL FREE
While I generally feel a rifle that sells for over a grand should be defect free from the factory, I gotta give it up to SIG for making it right, and doing it quickly, and professionally. The best part was that SIG charged me 31 dollars and some change to ship the rifle, and that was it. I got the rifle 4 days later, and now I’m roughly a thousand rounds deep without any issues. I sent the rifle off the next day and waited impatiently.ġ0 days later I get an email that my rifle was on its way back with the defects corrected. He told me if the issues weren’t a factory defect I would have to pay for the repair. Kyle was extremely helpful, professional, and answered every question directly and honestly. I talked with a CSR named Kyle who arranged for me to ship the rifle to New Hampshire. I knew off the bat I’d be sending it to SIG for repairs, and any repair costs would still put me under the average price for one of these rifles. I purchased this rifle heavily discounted because of issues with failing to extract and failing to eject. Before I start my review of the SIG 556R I want to do a short review of SIG’s customer service.
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