Full bore .45 power in a 9mm platform is a trick many pistol makers have pursued – with varying degrees of success. When the SIG SAUER P227 hit the market in January 2013, I thought the company had a hit.
The gun felt great in the hand and shot as well as any pistol in SIG’s P-series. Yet, the gun didn’t stand the test of time. After several years of production, the gun was discontinued – ultimately giving way to the company’s striker-fired, polymer-framed P320.
Back when the P227 was the new hotness, I had a chance to get some range time with one. This is my SIG P227 review from that time.
General Information
The SIG P227 was a service-sized pistol similar in appearance and function to the P226 handguns. The major difference is the caliber: the P227 was chambered for the .45 ACP cartridge.
I first saw the pistol when it was introduced at the 2013 Media Day at the Range event ahead of the SHOT Show. SIG had quite a few of the guns on the range along with cases of that classic .45 cartridge. I spent some time with one of the guns there, then got a gun for review a few months later.
Specifications
Here are the specs on the standard SIG P227 Nitron model:
| Caliber | .45 ACP |
| Magazine Capacity | 10, 14 (extended) |
| Action Type | traditional double-action/single-action |
| Barrel Length | 4.4″ |
| Overall Length | 7.7″ |
| Height | 5.5″ |
| Width | 1.5″ |
| Weight | 32.0 oz (w/ unloaded magazine) |
| Sights | contrast or SIGLITE night sights |
| Frame | black hardcoat anodized aluminum alloy |
| Slide | Nitron finished stainless steel |
| Grips | one-piece, E2 style |
| MSRP at Introduction | $993, $1,085 w/ night sights |
Features
The concept of the P227 was to put the big-bore .45 ACP cartridge into the same size gun as the company’s very popular P226. The P226 is a duty size pistol with double-stack magazines chambered primarily in 9mm with .40 S&W and .357 SIG versions also available.
SIG SAUER makes a number of .45 caliber handguns, including the classic P220. Presumably, to avoid confusion, the company elected to use a new model designation instead of simply offering the .45 as a P226 variant.
The P227 maintains the same size and overall layout as the P226 and manages to pack ten rounds of the classic round into each magazine. By comparison, the standard P220 pistol holds only 8 rounds.
Where to Buy SIG P227 Magazines
Even though SIG discontinued the P227, magazines for the pistol are still available. For the best price on P227 magazines, I recommend using our affiliate link to GunMagWarehouse:
Not only are the prices for OEM P227 mags much better than from SIG, but I’ve also gotten excellent service from them including fast shipping.
Extended magazines that hold 14 rounds were available separately. They added about an inch to the bottom of the grip. While the extended mags looked a bit unwieldy, I had no problems running them.
Sights on the standard P227 come in two varieties: contrast sights and SIGLITE sights. Contrast sights are SIG’s standard white dot front sight with a notch and single white, verticle line in the back. As I was told some years ago, to align the sights – “dot the i.”
SIGLITE night sights use tritium vials for a self-powered 3-dot aiming system suitable in both bright and low light conditions. Many people prefer these sights as self-defense encounters often happen in reduced lighting situations.
SIG engineered the P227 with all of the E2 enhancements. This includes the single-piece grip, reduced trigger reach and the non-proprietary accessory rail.
P220 Slide Compatibility
A unique feature of the P227 is that the frame will accept any P220 slide assembly. So, you can customize your P227 with any of the P220 SAS, Super Match or Carry slides. Additionally, all .22 LR kits for the P220 should work with the P227.
On the Range
Short Story: The SIG P227 performed exactly as one would expect. It was completely reliable with a smooth trigger and reasonable recoil.
If you’ve spent any time shooting a P226, then the P227 will feel nearly identical. There is a bit more roll from the recoil of .45 as compared to a 9mm cartridge, but the action, sights and accuracy all seem to be the same.
The gun shot very well and was very accurate. I found that recoil was slightly more than the duty P226 I was issued in .40 S&W, which surprised me a little bit. However, it was still very controllable.
I experienced no malfunctions with this gun and bullets went right where I aimed the pistol.Â
The trigger pull was what I have come to expect from SIG’s DA/SA guns. The first trigger pull was relatively long and heavy, but very smooth and easy to master. The subsequent, single-action pulls were short and crisp. There were no surprises here.
Ammunition Performance
Here’s how a sampling of ammunition performed in the SIG P227 testing:
| Velocity | Energy | Best 5-Shot Group | |
| Armscor 230 gr FMJ | 905 fps | 418 ft-lbs | 2.21″ |
| Hornady Critical Duty 220 gr FTX +P | 973 fps | 462 ft-lbs | 2.37″ |
| Remington Golden Saber 230 gr BJHP | 874 fps | 390 ft-lbs | 1.98″ |
| Remington UMC 230 gr FMJ | 899 fps | 413 ft-lbs | 2.33″ |
Final Thoughts
Ultimately, the P227 didn’t offer any surprises. If you like the P226, you should like this gun. If you don’t care for the P226, you are not likely to want one of these.
The P227 was a high-quality firearm, chambered for the .45, yet will fit the majority of existing holsters designed for the P226.
MSRP at launch ran from $993 to $1,125 depending on the version and options ordered.
Today, the only P227 pistols that can be bought are on the secondary market. So, unless you are really lucky and find some old stock in a dealer’s inventory, a used gun is all you will be able to get.
Where to Buy a SIG P227
The only reliable source for used SIG P227 pistols I’ve found is through our affiliate link to Guns.com here. At the time I am writing this, they have two in stock.
Last Update: October 1, 2021
Disclosure
GunsHolstersAndGear.com is an independent, for-profit website. I do not charge readers a dime to access the information I provide.
Some of the links on this page and site are affiliate links to companies like Amazon and Palmetto State Armory. These links take you to the products mentioned in the article. Should you decide to purchase something from one of those companies, I make a small commission.
The links do not change your purchase price. I do not get to see what any individual purchases.