SIG Sauer 556xi Standard .223 Remington/5.56 NATO Rifle
Caliber: .223 Remington, 5.56 NATO · Capacity: 30+1
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Specifications
Action Semi-Automatic
Finish Blue/Black
Sights Standard Sights
Weight 7.9 pounds
Capacity 30+1
Grip Safety No
Optic Ready Yes
Barrel Length 16 inches
Manual Safety Yes
Overall Length 35.75 inches
Trigger Safety No
Caliber / Gauge .223 Remington, 5.56 NATO
Threaded Barrel Yes
Magazines Included 1
Ambidextrous Safety Yes
WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to WWW.P65WARNINGS.CA.GOV
Description
Product Overview
The SIG Sauer 556xi Standard is a semi-automatic rifle built around the modular SIG556 platform. Chambered for .223 Remington and 5.56 NATO, it features a 16-inch barrel, a 30+1 capacity, and compatibility with MIL-SPEC AR-15, M4, and M16 magazines. Ambidextrous controls include the safety selector, magazine release, bolt release, and charging handle, making the rifle adaptable for right- or left-handed users. The folding synthetic stock improves portability, while the integrated rail and standard folding iron sights provide flexible aiming options.
Key Features
- Semi-automatic rifle chambered for .223 Remington and 5.56 NATO
- 16-inch barrel with a threaded muzzle for compatible muzzle devices
- Accepts MIL-SPEC AR-15, M4, and M16 magazines
- Ambidextrous safety selector, magazine release, bolt release, and charging handle
- Folding synthetic stock helps reduce storage and transport length
- Integrated optics-ready top rail supports a wide range of aiming systems
The SIG Sauer 556xi Standard combines dependable semi-automatic operation with ambidextrous controls and modular AR magazine compatibility.
4.7 | 13 Reviews
Free and Fast Shipping to the Lower 48 States.
- SKU:
- R556XI16BC
- UPC:
- 798681468461
- BUDS ID:
- 90540
Compatible Ammo
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Customer Reviews
4.7 out of 5
13 total reviews
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Latest Reviews
Nickolas N.
4 years ago
Verified Purchaser
Probably one of the...
Probably one of the best 556r versions. Sad they moved on to other things. One of the smoothest shooters I've ever had.
Jeffrey K.
9 years ago
Verified Purchaser
This is my favorite...
This is my favorite 556 rifle. the finish and quality of manufacturing is second to none. Shoots great out to 500 yards with a USMC ACOG. Very nice. If you can afford it, you will love it. SIG!
Christian C.
9 years ago
Verified Purchaser
An extremely fun...
An extremely fun shooter and another typical over-engineered product from Sig. The only gripe is Sig's owner's manual. Its detail, font size and general vague references and indicators, force you to rely on the website and Youtube. I'm not even that old, but I can barely read it! Still, a superb handling rifle and will be a keeper. Bud's transactions are always flawless though.Good people and good prices. Thanks all.
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Retail Availability
Bud's Gun Shop - Lexington, KY
1105 Industry Road, Lexington, KY 40505
Bud's Gun Shop - Sevierville, TN
2270 Two Rivers Blvd, Sevierville, TN 37876
Uncle Lee's - Greenville, KY
820 Main St, Greenville, KY 42345
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| Action | Semi-Automatic | Semi-Automatic | Semi-Automatic | Semi-Automatic | Semi-Automatic |
| Barrel Length (in.) | 16.0 | 16.0 | 16.0 | 16.0 | 16.0 |
| Caliber / Gauge | 5.56 NATO, .223 Remington | .223 Remington, 5.56 NATO | .223 Remington, 5.56 NATO | .223 Remington, 5.56 NATO | .223 Remington, 5.56 NATO |
| Capacity | 30 | 30 | 30 | 30 | 30 |
| Manual Safety | Yes | Yes | Yes | Yes | Yes |
| Threaded Barrel | Yes | Yes | Yes | Yes | Yes |
| Ambidextrous Safety | Yes | No | Yes | Yes | Yes |
| Finish | Blue/Black | N/A | Black | Blue/Black | Black |
| Optic Ready | Yes | Yes | No | Yes | Yes |
| Overall Length (in.) | 35.75 | N/A | 30.5 | 28.15 | 32.5 |
| Weight (lbs) | 7.9 | N/A | 6.6 | 8.8 | 6.5 |
| Sights | Standard Sights | N/A | Standard Sights | Standard Sights | N/A |
| Actions | Current Item |
