Rock Island 1911 GI .45 ACP - Classic Power, Modern Precision
The Rock Island 1911 GI .45 ACP - Classic Power, Modern Precision is a .45 ACP full size handguns from Rock Island Armory. It is available from 3 vendors at $491.25 to $543.99.

Product Information
Name: Rock Island 1911 GI .45 ACP - Classic Power, Modern Precision
Brand: Rock Island Armory
Category: Full Size Handguns
Caliber: .45 ACP
Barrel Length: 5"
Capacity: 10 rounds
UPC: 4806015515067
SKU: UD1MbypJrH
Description
The Rock Island Armory 1911 GI is a straightforward .45 ACP single-action pistol built on the classic 1911 platform. It comes in a full-size 5-inch barrel configuration with a 10+1 capacity, polymer frame with black Parkerized finish, and serrated steel slide.
Key Specifications
- Brand: Rock Island Armory
- Model: GI 1911 Standard
- Caliber: .45 ACP
- Capacity: 10+1 rounds
- Barrel Length: 5 inches
- Overall Length (OAL): 8.75 inches
- Weight: 45.10 oz (2.8 lbs)
- Frame Material: Polymer with Black Parkerized finish
- Slide Material: Steel with Serrated Black Parkerized finish
- Action Type: Single Action Only (SAO)
- Sight Style: Fixed low-profile sights
- Safety Features: Beavertail safety
- Grips: Black rubber
Detailed Features
Fixed low-profile sights give you a clean sight picture without adding snag points. The beavertail safety is a practical addition -- it prevents hammer bite and encourages a high, consistent grip. The Parkerized finish on both frame and slide resists corrosion and wear under normal use conditions. Black rubber grips provide a serviceable hold without being flashy.
Complete Specifications
| Caliber | .45 ACP |
| Model | 1911 GI |
| Capacity | 10 rounds |
| Magazines included | 1 |
| Barrel length | 5" |
| Overall length | 8.75" |
| Weight | 45.1 oz |
| Action | Single Action |
| Finish | Black Parkerized |
| Color | Black |
| Sights | Fixed |
| Safety | Beavertail |
Frequently Asked Questions
What caliber is the 1911 GI?
The 1911 GI is chambered in .45 ACP.
Who makes the 1911 GI?
The 1911 GI is made by Rock Island Armory.
What type of firearm is the 1911 GI?
It is a full-size single-action semi-automatic pistol built on the classic 1911 platform.
What is the barrel length of the 1911 GI?
It has a 5-inch barrel.
How many rounds does the 1911 GI hold?
It has a 10+1 capacity.
What finish does the 1911 GI have?
The frame and slide both have a Black Parkerized finish.
Where can I buy the 1911 GI?
Compare current vendor offers on this page.
Customers Say
AI-generated insights derived from customer reviews and discussions on popular gun-enthusiast forums.
The Rock Island 1911 GI .45 ACP is a popular entry point into 1911 ownership, and the reception reflects that. Most owners appreciate the classic 1911 feel and weight, and the .45 ACP caliber is well-regarded for its effectiveness.
Reliability is generally solid, and the pistol handles various ammunition types without major complaints. Accuracy is adequate out of the box for range use and self-defense purposes.
The most common thread in critical feedback is fit and finish -- compared to higher-end 1911s, some parts feel rougher, and a few owners have done minor tuning to get it running exactly how they want. Sight upgrades and grip swaps are common first modifications. None of this is unusual for the price bracket.
Pricing is one of the rifle's main selling points; it gives shooters a functional 1911 platform without a significant outlay. That makes it appealing both for newcomers exploring the platform and for collectors who want a shooter rather than a safe queen.
Where to Buy - 3 Offers Available
Price Range: $491.25 - $543.99
| Vendor | Price | Condition | Link |
|---|---|---|---|
| Gunbuyer Com | $491.25 | New | Buy Now |
| Grabagun Com | $521.99 | New | Buy Now |
| Buds Gun Shop | $543.99 | New | Buy Now |






















