SIG Sauer P227 Nitron Full-Size .45 ACP DA/SA Pistol – 10+1 Rounds, Night Sights, Alloy Frame
The P227 brings SIG Sauer’s proven P220 heritage into a higher-capacity, double-stack format. Built in 2013, this full-size Nitron variant holds 10+1 rounds of .45 ACP while retaining the classic alloy frame, decocking system, and crisp DA/SA trigger that SIG fans expect. Limited to a six-year production run, the P227 has already earned attention from law enforcement and collectors alike for being the last major evolution of the P22X alloy-frame line before the modular P320 era.
Condition
Overall Condition: Good – Shows some signs of prior use and handling.
Bore Condition: Excellent – Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent – Sharp lands and grooves.
Specific Condition Notes: The slide and frame display only minimal handling marks, and the barrel hood shows light cycling lines consistent with routine range use.
What’s Included
- SIG Sauer factory hard case (black plastic)
- SIG Sauer P220/P224/P226/P227/P229 series owner’s manual
- (2) factory 10-round double-column steel magazines marked “Made in Italy” (Mec-Gar OEM)
The 4.4-inch stainless steel barrel wears SIG’s durable black coating, matching the Nitron-finished slide with rear cocking serrations for positive manipulation. A full Picatinny accessory rail sits ahead of the trigger guard for mounting lights or lasers.
SIGLITE tritium night sights—front bead and two-dot rear—provide a clear, three-point sight picture in any light. The reversible magazine release supports left- or right-handed shooters, while the one-piece wrap-around E2 grip panel offers a slim, textured surface that reduces felt width without sacrificing control.
Safety is handled through the proven SIG decocking lever, firing-pin safety block, safety intercept notch, and trigger-bar disconnector, giving shooters a consistent, repeatable manual of arms. Despite its 10-round double-stack magazine, the pistol weighs a manageable 32 ounces empty, aided by its black hard-coat anodized aluminum-alloy frame.
Produced from 2013 to 2019 and fielded early by the Indiana and Pennsylvania State Police, the P227 represents the pinnacle of SIG’s classic P22X design. For shooters or collectors wanting a factory double-stack .45 in the traditional SIG format, this example offers clean internals, a bright bore, and complete factory accessories.