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Sphinx Arms

Sphinx SDP Compact Alpha 9mm Threaded Barrel

Sphinx SDP Compact Alpha 9mm Threaded Barrel
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Availability: Out of stock




The SPHINX SDP Compact Alpha is a duty-sized pistol that can adapt to virtually any role. Every design feature on the SDP Compact Alpha is tailored to maximize performance, quality, and ergonomics. The competition inspired trigger is very smooth with a clean break and short, crisp, reset. The steel slide is machined from billet and is hand fitted to mate perfectly with the interior, full length guide rails, of the billet aluminum upper frame. The polymer pistol grip features interchangeable back-straps to adjust length and width of the grip, the grip inserts are specifically designed to maximize contact with the support hand for added control. Also for added control, the high trigger guard shape and beaver tail allow for high hand placement on the pistol frame to compliment the low bore axis of the barrel, which allow the shooters to easily manage recoil. A Picatinny rail on the frame allow for the addition of modern tactical shooting accessories. The front and rear cocking serrations offer different options of firearm manipulation and the dotted front sight contrasts with the black rear sight for quick target acquisition. 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 Compact Alpha. Every component of the SDP Compact is manufactured to the highest standards and tolerances are extremely tight. Derived from competition and built for duty use, the SDP Compact is the ideal gun to suit your needs on the job, in the home, or in the shoot box.



  • Caliber: 9mm
  • Overall Length: 7.4"
  • Overall Height: 5.35"
  • Overall Width: 1.37"
  • Weight: 28.18oz
  • Barrel Length: 3.7"
  • Barrel Threading 13.5x1 LH
  • Sight Radius: 5.7"
  • Front Sights: Iron blade with white dot
  • Rear Sights: Serrated fixed sight
  • Action: DA/SA with ambidextrous decocking lever
  • SA Trigger Pull Weight: 4.0 lb
  • DA Trigger Pull Weight: 10.14 lb
  • Slide material: Steel
  • Upper Frame material: Hard anodized aluminum
  • Lower Frame material: Polymer base with Rubber
  • Grip: Polymer incl. finger molds
  • Interchangeable Inserts: Polymer base with Rubber (S, M, L)
  • Magazine catch: left / right - reversible
  • Magazine capacity: 15+1


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Please have your dealer email their license to or they can also fax it in. Please give us a few days to process the information.

Additional Info

Additional Info

Manufacturer Sphinx Arms
Finish No
Barrel Length No
Caliber 9mm
Configuration No
Option No
Gas Length No
Height No
Rail Length No
Mount No
Profile No
Reticle No
Co Witness No
Size No



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