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First Images Emerge Of The SIG Sauer SG56X Family

 

SIG Sauer’s latest creation has been spotted! Various images floating around social media show the new SG56X series, which seems to blend features from the SG55X family with the MCX Spear LT. Let’s take a look at some pictures and see what we can gather from them.

SIG @ TFB:

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These images are from the Swiss Shooting Club’s 200th Anniversary celebration in Aarau, Switzerland. First, the banner makes reference to both the SG56X and SG563. This seems to mirror the naming convention used with the SG550 and its derivative models. The family is often called the “SG55X” series, with the SG550 as the original and longest model, the short SG551, and shorter SG552 and SG553 models. There is also the US-made SG556 which either is or isn’t part of the family depending on how Euro-purist you are. This same naming pattern holds true, and the SG563 is the shortest model in the larger SG56X series. There are also SG560 and SG561 models as well (but not an SG562, because the SG552 was replaced by the improved SG553), as the following picture shows.

This poster shows the SG560, SG561, and SG563 are all part of the new series

The upper receiver itself is clearly derived from the SG55X. It has a right-side bolt handle with riveted rubber dust covers seen on the original. From the pictures, it also seems like formed sheet steel construction. The lower looks like machined aluminum.

SG56X with AR and SIG magazines

In this image, we can see two SG563 models side by side. Other than the obvious color difference, the most noticeable difference is the magazine. The bottom gun feeds from the standard SG55X magazine, while the top gun has an AR-15 magazine. But unlike the lowers of the 55X series, which are manufactured for one magazine pattern or the other, the 56X series lowers can work with either. Note what appears to be a magazine adapter by the black SG563. This feature is confirmed in the following Instagram stories from @scaraat.

This post also notes that the new style handguard is free-floating. That is an improvement over the SG55X family. Also note that the handguard on the SG56X has a cutout very similar to the one on the MCX Spear LT, but the gas valve remains the classic SC55X style rather than the one on the MCX.

This image states that the lower fits on standard SG55X uppers. Unlike those lowers though, these use AR parts like triggers and grips. This takes away some of the charm of the original but it is a lot more practical.

The AR/MCX influence is clear, with the trigger, grip, and safety all being imported
An ambidextrous bolt catch is on the right side of the gun

The safety design is also clearly from the AR. Another point of departure from the SG55X is the magazine catch. The original uses a paddle, much like an AK or H&K. The 56X uses an ambidextrous button, regardless of the type of magazine being used. Another point to note is the ambidextrous bolt catch on the right side of the gun. This has become increasingly common on AR-15s like the Daniel Defense RIII, and is also on the Spear LT.

One piece that clearly comes from the MCX Spear LT is the stock. Rather than the older hinge pin, there is a picatinny rail segment. The SG56X models in these images sport various stocks seen on the MCX family, but any other 1913 stock would work as well.

SIG also displayed another new gun, but it is not likely to be a commercial success in the US. The SG711 takes the large frame SG7XX series and converts it to 7.5×55 Swiss. That caliber is very common in Swiss competition shooting. In most of those competitions the 7.5×55 is used in the K31 or Stgw57. Both of those guns are a little long in the tooth and have been out of production for some time. It seems that there is demand for a match-oriented rifle in 7.5 Swiss, but with some modernization. Given the quantity of ammunition the Swiss probably have hidden in some mountain fortress, the SG711 could be a good way to use that ammo up.

The SG711 looks like an overgrown Stgw90, but with a magazine with a clear resemblance to the Stgw57. Two models are on display, one with more traditional Stgw90 styling, the other with modernized features like and MLOK handguard and adjustable stock. The modernized gun has a magnified optic, but the standard thick-Stgw90 has match diopter sights on the receiver and extended out to the muzzle rather than the gas block location where the front sight usually is.

SG711 with a striking resemblance to the Stgw90
SG711 with modernized features

While these pictures reveal what SIG Sauer is planning, we do not have many other details. There is no information on timeline or price point yet. Also, SIG Sauer really only sells the SG55X and SG75X in Switzerland (with only a few being imported to the US each year). Who knows if we will ever see US-made or Swiss imports of the SG711 or SG56X here in the US domestic market.