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SIG Sauer SG 550

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MSRP:

$1129.99

Used Price:

$1,129.99

Sale Price:

$1611.99

SIG Sauer SG 550 Gun Stats

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Designed in cooperation with SIG and special police force units. Medium heavyweight barrel with attached flash hider, ribbed and ventilated handguard with folding adjustable bipod, standard receiver markings, ambidextrous safety, spring secured scope mount numbered to the gun with Hensoldt Wetzlar ZF1.5-6x BL scope, cant adjustable textured grip with adjustable hand rest, and folding buttstock with adjustable comb and buttplate.

SIG Sauer SG 550 For Sale

SIG Sauer SG 550 Specs

1 Brand

2 Category

Technical Data

Caliber

.223 Remington (5.56x45mm NATO)

Gun Type

Rifle

Weight

144 oz

Capacity

30+1

Length

39.3"

Finish

Black

Sights

Iron Sights

Rear Sight

Adjustable

Action

Gas-operated

Barrel Length

20.8"

SIG Sauer SG 550 Features

The SIG Sauer SG 550 is the first in a series of gas operated rifles based on an AKM style action.  This rifle uses a long-stroke gas piston and 2-lug rotating bolt and is built with a 20.8 inch barrel topped with a hooded front sight and a range-adjustable diopter sight at the rear.  The 550 model can be equipped with a folding bipod that folds into the handguard.


SIG Sauer SG 550 Ballistics

.223 Remington (5.56x45mm NATO) Ballistic Data
Range (Yards) Drop (inches) Velocity Energy Wind drift (inches) Time (milliseconds)
0 0 0 0 0 0
50 0 0 0 0 0
100 0 0 0 0 0
150 0 0 0 0 0
200 0 0 0 0 0
250 0 0 0 0 0
300 0 0 0 0 0
350 0 0 0 0 0
400 0 0 0 0 0
450 0 0 0 0 0
500 0 0 0 0 0

SIG Sauer SG 550 Capacity

The SG 550 is chambered in 5.56x45mmNATO (.223 Remington) and feeds from proprietary, translucent polymer detachable box magazines.  The most common of these hold 30 rounds while smaller 10 and 20 round magazines are available.  The mags are loaded into the gun similar to an AKM with a “rock and lock” motion.
The SG 550 measures 39.3 inches long and has an unloaded weight of 9.04 pounds making it as long as an M16A2 and making it approximately 2 pounds heavier.  The SG 550’s saving grace is its folding stock that can reduce the overall length to under 30 inches for navigating through tight spaces.

SIG Sauer SG 550 Mobility

Mobility

SIG Sauer SG 550 Ergonomics

Ergonomics
The SG 550 feels like a hybrid of a bunch of rifles.  The stock and the optics give it a feel similar to the G3, the pistol grip feels very similar to the FN FAL, the controls largely take from the AKM, the safety is located similarly to the AR15, and the handguard offers a forward grip that feels reminiscent of an M16A1.

SIG Sauer SG 550 Fit & Finish

The handguard, pistol grip and stock are made of high-strength polymers while the rest of the parts are made of hardened steel.  This rifle is built with stamped receivers and has a rather complex maintenance procedure when compared to an AR or AK.  The bolt assembly disassembles through a strange order of operations that are designed to ensure reliability and accuracy.
Fit and Finish

How much is a SIG Sauer SG 550 worth?

In 2025 a new or used SIG Sauer SG 550 value varies depending on supply and demand. In the last 12 months there is great demand for a SIG Sauer SG 550 and most rifles. The Price for a SIG Sauer SG 550 has increased in cost by $0.00 in 2025 compared to 2024.

Estimated New and Used Values for a SIG Sauer SG 550 Values are based on a basic model with no options or colors.

Condition Trade-In Private Party Dealer
New In box $1,047.79 $1,370.19 $1,611.99
Excellent $967.19 $1,289.59 $1,450.79
Very Good $886.59 $1,289.59 $1,450.79
Good $806.00 $1,208.99 $1,370.19
Fair $564.20 $1,047.79 $1,289.59
Poor $403.00 $806.00 N/A

Gun Value Conditions explained:

New in box - 100% condition in unopened box. Excellent - 95%+ condition with or without box.

Very Good - 90% - 95% condition (all parts/finish should be original).

Good - 80-90% condition (all parts/finish should be original).

Fair - 30% - 80% condition, parts, and finish may or may not be original. Must function properly and shoot.

Poor - under 30% condition. Firearm has severe wear and tear, does not function, or is damaged.

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