I fired a variety of ammunition through the two Sig 9mm pistols over the chronograph to check velocities, with the results listed in the chart below. Velocities are listed in feet-per-second. Bullet weights are listed in grains. JHP is a jacketed hollowpoint bullet. DPX, Buffalo Bore Lead Free, and Double Tap Tac-XP are hollow nose homogenous copper bullets that are made by Barnes Bullets. Guard Dog is a FMJ with a soft plastic core to promote rapid expansion. FP is a frangible, pre-fragmented flatnose bullet. FMJ is a full metal jacket roundnose bullet. PB is Pow’RBall, a specialty bullet from Cor-Bon. Glaser is a pre-fragmented bullet. Velocities were taken at an elevation of 541 feet above sea level, with an air temperature of forty-two degrees Fahrenheit. Velocities were recorded at ten feet from the muzzle.

Sig pistols have several built-in safety features that make them suitable for carry. The hammer is blocked from contacting the firing pin if dropped. It is a rebounding design, and is blocked from moving forward unless the trigger is held to the rear. Also, the firing pin block prevents the firing pin from moving forward unless the trigger is held to the rear. To safely decock a cocked hammer, the decocking lever lowers the hammer without the user having to touch the trigger. The slide locks open on an empty magazine, and the slide lock lever is located at the left rear of the frame.

For carrying the Sig pistols, I used a holster from a manufacturer that is new to me, but this won’t be the last time that I use the excellent holsters from Extreme Concealment Systems. Shown here is their Kydex ECS Cobra holster and matching magazine carrier. Both the holster and carrier are very well-fitted, and both are also adjustable for height and cant, by moving the belt loops up or down in the holes provided. The holster is thin, stiff, and conceals very well. One of the great advantages of Kydex is that while thin, it retains its shape with the gun removed, greatly aiding in ease of re-holstering the weapon. The ECS Cobra holster covers the trigger guard, and the back of the holster is raised, to protect both the weapon and the clothing from wear. All Extreme Concealment holster have a one hundred percent satisfaction guarantee, and a lifetime warranty. One thing that I really like about the ECS Cobra is that it conceals much better than most other Kydex holsters on the market. The ECS Cobra is designed, formed, and fitted with concealment in mind, and if desired, can be quickly adapted to inside the pants carry by swapping out the belt loops for j-hooks. Unlike most Kydex holsters on the market, which are black or maybe olive green, Extreme Concealment offers their holsters in a variety of colors and patterns, from pink to camouflage, to suit any preference.

Back to the two Sig pistols, both proved to be reliable and accurate. Using the variety of ammunition listed above, only one malfunction of any kind occurred during testing. Every cartridge fed, fired, and ejected perfectly, except for one cartridge that evidently had a bad primer. It did fire on the second pull of the trigger, as the Sig design has multiple strike capability. I tested the two Sig pistols for accuracy using a Ransom Master Series machine rest, at a distance of twenty-five yards. I could discern no difference in the accuracy of the two pistols, with five-shot groups averaging between one and one-half to three inches, depending upon the ammunition used. I also fired the two pistols at steel targets from twenty-five to one hundred yards. The sights work very well for quickly acquiring a sight picture, and both pistols wear the SigLite tritium night sights. Also, to further aid in low-light shooting, I installed a Lasermax Guide Rod laser into the MK25. It is very easy to install, and can be activated with the trigger finger of either a left-handed or right-handed shooter.

These two Sig pistols are built to fill military contracts, so both have phosphate-coated internal parts. The rail on the MK25 is 1913 Picatinny compliant. The pistols also wear the old-style two-piece grips, and bear US Department Of Defense labels.

Check out the M11 and MK25 pistols online at www.sigsauer.com.

To order quality 9mm ammunition, go to www.buffalobore.com, www.doubletapammo.com, www.luckygunner.com, and www.theamericanmarksman.com.

To order the holster and mag pouch shown here, go to www.extremeconcealment.com.

To order the Lasermax Guide Rod laser, go to www.lasermax.com.

Jeff Quinn

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