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Sphinx SDP Sub-Compact Alpha 9mm DA/SA

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Sphinx SDP Sub-Compact Alpha 9mm DA/SA


The SPHINX SDP Subcompact is a lightweight concealed carry, or back up, pistol with design roots from the competition circuit.  Carry with ease, draw with confidence, fire with precision.

The SPHINX SDP Subcompact Alpha is the smallest and lightest of the SDP line up of pistols. The Subcompact Alpha is the perfect choice for concealed carry, or professional duty use, with an overall weight just under 25oz and an overall height and width at 4.9” and 1.2” respectively.  Though the SDP Subcompact Alpha is small in stature it does not sacrifice in quality or performance.Through precision machining and hand fitting by a master gunsmith, the SDP Subcompact Alpha can achieve similar groupings to that of its larger counterpart, the Compact Alpha.The Subcompact Alpha shares more than just high performance figures with the larger pistols in the Alpha line.It also features a steel slide machined from billet.The upper frame, machined from billet aluminum, features full length internal guide rails which provide very smooth slide operation as well as solid barrel lock up.The pistol grip is polymer and textured for maximum ergonomics and grip.The pistol grip is also contoured to offer high hand placement to compliment the low bore axis, which assist the shooter with managing recoil.  Ambidextrous features include the decocking lever and a magazine release that can be switched to either side.The slide release lever also serves as the take-down pin and is located on the left side of the Subcompact Alpha.The white dot front sight is easy to see in contrast to the black rear sight.The competition inspired trigger is very smooth, in both double and single action mode, with a clean break and short, crisp, reset.Every component of the SDP Subcompact is manufactured to the highest standards and tolerances are extremely tight.Defined by precision, the Subcompact Alpha is the only choice for discerning shooters that demand the utmost in build quality and performance.


  • Caliber     9x19 mm

  • Overall Length     6.55 in / 168 mm

  • Overall Height     4.97 in / 126 mm

  • Overall Width     1.22 in / 31 mm

  • Weight     24.90 oz / 709 g

  • Barrel Length     3.13 in / 79.5 mm

  • Sight Radius     5.08 / 129 mm

  • Front     Iron blade with white dot

  • Rear     Serrated U shape sight

  • Action     DA/SA with ambidextrous decocking lever

  • Trigger Pull Weight     SA: 4.0+ lb / 1.8+ kg

  • Trigger Pull Weight     DA: 10.0+ lb / 4.5+ kg

  • Slide material     Steel

  • Slide finish     Black with TIAIN coating

  • Frame material Upper     Hard anodized aluminum

  • Frame material Lower     Polymer

  • Grip     Polymer incl. finger molds

  • Magazine capacity     13+1

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Manufacturer Sphinx Arms