The SIG Sauer P226 X-Five Nightmare pistol is chambered in 9mm Luger with a single-action-only trigger, built on an all-metal stainless steel frame with a black Nitron finish. It has a 5-inch bull barrel, an optic-ready slide cut to the SIG-LOC footprint, and custom Hogue G10 Nightmare grips. 
 

Key Specifications 

• Brand: Sig Sauer 
• Model: P226 X-Five Nightmare 
• Caliber: 9mm Luger 
• Action: Single Action 
• Capacity: 10+1 
• Barrel Length: 5" 
• Finish: Black Nitron 
• Material: Stainless Steel 
• Weight: 2.91 lbs 
• Height: 5.90" 
   

Detailed Features 

• 5-inch bull barrel paired with a single-action trigger for a short, consistent pull 
• Optic-ready slide uses the SIG-LOC footprint, serrated front and rear 
• Manual safety and a fiber optic front sight paired with an adjustable target rear sight 
• Stainless steel frame includes a beavertail and a Picatinny accessory rail 
• Ships with three 10-round steel magazines and custom Hogue G10 Nightmare grips

The P226 X-Five Nightmare draws praise from owners who shoot competition or precision drills, with the single-action trigger consistently described as one of the better factory triggers SIG offers. The stainless steel frame adds noticeable weight, which most shooters credit with taming recoil.

Carrying the X-Five daily is less common given its size and weight, so most owners treat it as a range or competition gun rather than an everyday carry piece. The adjustable target sights and bull barrel get regular mention as aids to a cleaner sight picture.

Value opinions are mixed: the X-Five commands a premium over standard P226 models, and some owners feel the metal-frame fit and finish justifies it while others say the manual safety and single-action-only design narrow its appeal versus a standard DA/SA P226. Aftermarket parts for the X-Five line are more limited than for base P226s.