Sphinx Arms SDP Compact

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Summary: The description, specs, photo and user ratings of the Sphinx SDP Compact pistol.

Manufacturer’s Description

The Sphinx SDP Compact is a semiauto chambered in 9mm or 9x21mm and built on a two-piece frame with a double-action/single-action trigger. This pistol is reportedly based on CZ 75-type pistols.

Sphinx says the upper frame or dust cover is made from aeronautic grade, hard-anodized aluminum with Teflon inserts to reduce wear. The lower part of the frame or grip is made from a proprietary polymer.

The ergonomic, three-component grip is made from soft and hard material for a comfortable, confident hold. Three interchangeable grip sizes are available.

The integrated recoil buffer is designed to provide gun stabilization, get it back on target quickly and improve accuracy. The full-length guide rails are not inserts, but machined in to provide additional strength and increase accuracy. The integrated picatinny rail is made from MIL-STD 1913 aluminum with four notches to hold a variety of accessories.

The Sphinx’s slide is fully machined from solid steel and features a pyramid design that decreases weight and profile. The slide is coated with TiAIN to resist corrosion and wear.

The Sphinx SDP features Defiance sights, including a fiber/tritium green front sight and a tritium two-dot red rear sight.

Other features include:

  • A loaded chamber indicator (visual and tactile);
  • an internal firing pin safety;
  • a drop safety;
  • an integrated slide position safety; and
  • a hammer safety.
The Specs
Caliber Capacity OAL BBL Height Width Weight
9mm, 9x21mm 15+1 7.4″ 3.7″ 5.5″ 1.3″ 27.5 oz.

Note: The SDP Compact Plus model reportedly squeezed in two additional rounds (17+1). Not sure if it’s still in production.

Also, Sphinx Arms was purchased by the KRISS Group, became Sphinx Systems and eventually filed for bankruptcy. KRISS USA now produces the Sphinx SDP line in the United States.

MSRP: $1,150–$1,195

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