# Kriss Sphinx SDP Compact Alpha - 9mm, 15+1, Dual-Action Pistol

**Brand:** KRISS USA
**Category:** Compact Handguns
**Caliber:** 9mm

## Specifications

- **Caliber:** 9mm
- **Barrel Length:** 3.7"
- **Capacity:** 15 rounds
- **Finish:** Black Nitride (QPQ)
- **Weight:** 28.18 oz
- **Overall Length:** 7.4"
- **UPC:** 810237020210
- **SKU:** UCEGPPxre

## Description

The Kriss Sphinx SDP Compact Alpha is a 9x19mm pistol with a single/double action hammer-fired system, a 15+1 capacity, and an aluminum frame finished in hardcoat anodized black. At 28.18 oz and 7.4 inches overall, it sits in the mid-size compact category.

### Key Specifications
- **Series:** Sphinx SDP Compact Alpha
- **Action:** Single/Double
- **Caliber:** 9x19mm
- **Capacity:** 15+1 rounds
- **Sight:** Iron Blade with White Dot Front, Serrated U Shape Rear
- **Sight Radius:** 5.7 inches
- **Slide Material:** PVD Coated Black Steel
- **Safety Features:** Ambidextrous Decocker
- **Grip Type:** Black Interchangeable Backstrap (Small, Medium, Large)
- **Trigger Pull Weight:** 4+ lb Single Action; 10+ lb Double Action
- **Barrel Material:** 4140 Pre Hardened Steel
- **Frame Material:** Aluminum
- **Barrel Finish:** Black Nitride (QPQ)
- **Frame Finish:** Hardcoat Anodized Black
- **Barrel Length:** 3.7 inches
- **Overall Length:** 7.4 inches
- **Weight:** 28.18 oz
- **Overall Height:** 5.35 inches
- **Overall Width:** 1.37 inches
- **Twist Rate:** 1:10 inch
- **Barrel Grooves:** 6
- **Magazine Release Position:** Left/Right - Reversible

### Detailed Features
The frame is aluminum with a hardcoat anodized finish; the slide is PVD coated steel. The barrel uses 4140 pre-hardened steel with a black nitride (QPQ) finish for corrosion resistance. Three interchangeable backstraps (small, medium, large) let you fit the grip to your hand. The ambidextrous decocker drops the hammer safely without a manual safety lever, which simplifies the draw-and-fire sequence. The reversible magazine release works left- or right-handed without aftermarket modification. The iron blade front sight with a white dot pairs with a serrated U-shape rear across a 5.7-inch sight radius, which is adequate for the 3.7-inch barrel length.

## What Customers Say

*AI-generated insights from customer reviews*

Owners of the Kriss Sphinx SDP Compact Alpha in 9mm generally rate it well on build and reliability. The construction gets consistent praise, solid feel, well-fitted parts, and no rattling or play. Reliability over range sessions is frequently mentioned, with most users reporting minimal malfunctions.

The single/double action system draws mixed opinions. Some appreciate having both modes available; others prefer a lighter, more consistent single-action pull for every shot. As a compact, it carries reasonably well and the 15+1 capacity is a plus. A few owners would prefer more rounds but acknowledge the trade-off given the size. Pricing comes up regularly. It sits at a premium compared to other compacts, and opinion is divided on whether the build quality justifies the difference. Holster and aftermarket accessory availability is limited compared to more common platforms, which some users flag as a real-world inconvenience.

## Pricing

**1 offers available**

| Vendor | Price |
|--------|-------|
| Gunbuyer Com | $850.25 |

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*Data from [GunsNation](https://gunsnation.com)*