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SIG Sauer 551-A1

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3 Reviews

MSRP:

$1129.99

Used Price:

$1,129.99

Sale Price:

$1611.99

SIG Sauer 551-A1 Gun Stats

SIG Sauer 551-A1

SIG Sauer 551-A1

Palmetto State Armory Palmetto State Armory

From $1,129.99

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Chambered for the widely used 5.56 x 45mm NATO caliber using Swiss Polymer magazines, The SIG551-A1 features a distinctive swiss folding stock, and a M1913 rail for accessory attachment. The 16" barrel features a four-grove rifling and a twist rate of 1:7". The SIG551-A1 measures 36.1" but can fold to 26", making it ideal for situations where maximum maneuverability is required. For Special Forces requiring an accurate, more potent rifle, chambered in 5.56 x 45mm NATO, the SIG551-A1 sets a new standard for dependable operation and function.

SIG Sauer 551-A1 For Sale

Guns.com

SIG Sauer 551-A1

Guns.com
Guns.com

$1,676.47

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Optics Planet

SIG Sauer 551-A1

Optics Planet
Optics Planet

$1,660.35

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Sportsman's Warehouse

SIG Sauer 551-A1

Sportsman's Warehouse
Sportsman's Warehouse

$1,676.47

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Cheaper Than Dirt

SIG Sauer 551-A1

Cheaper Than Dirt
Cheaper Than Dirt

$1,563.63

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Brownells.com

SIG Sauer 551-A1

Brownells.com
Brownells.com

$789.99

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KYGUNCO

SIG Sauer 551-A1

KYGUNCO
KYGUNCO

$958.10

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GrabAGun

SIG Sauer 551-A1

GrabAGun
GrabAGun

$914.99

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EuroOptic.com

SIG Sauer 551-A1

EuroOptic.com
EuroOptic.com

$1,660.35

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Guns.com

SIG Sauer 551-A1

Guns.com
Guns.com

$1,644.23

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Academy Sports + Outdoors

SIG Sauer 551-A1

Academy Sports + Outdoors
Academy Sports + Outdoors

$1,644.23

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Firearms Depot

SIG Sauer 551-A1

Firearms Depot
Firearms Depot

$1,628.11

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SIG Sauer 551-A1 Specs

1 Brand

SIG Sauer

2 Category

Rifles

Technical Data

Caliber

.223 Remington (5.56x45mm NATO)

Action

Semi-Auto

Capacity

30+1

Finish

Black

Gun Type

Rifle

Sights

Fixed

Barrel Length

16.1"

Length

36 1/2"

SIG Sauer 551-A1 Features

The SIG Sauer 551-A1 is a semi-automatic rifle that operates on a long-stroke gas piston with a 2-lug rotating bolt action that is loosely based on the AKM platform.  Its 16 inch barrel is paired with an adjustable gas block and includes an optics rail over the receiver that can accept most common optics systems.  The trigger pull is typically between 7 and 7.5 pounds.

SIG Sauer 551-A1 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 551-A1 Capacity

The SIG 551-A1 is chambered in 5.56x45mmNATO (.223 Remington) and feeds from all 5.56 caliber 550 series magazines giving the rifle a standard capacity of 30 rounds while shorter 5 and 10 round magazines are available.  The 30 round magazines have a peg and groove system on their left and right sides that allow you to easily snap magazines together.
The SIG 551-A1 has an unloaded weight of approximately 7 pounds with an extended length just over 36 inches and a folded length just over 26 inches.  This means that the rifle is easy to carry over long durations and while it has the advantage of a folding stock for easier use navigating tight spaces, the outdated control layout (most notably the right-side charging handle) can slow down reload times compared to other rifles on the market.


SIG Sauer 551-A1 Mobility

Mobility

SIG Sauer 551-A1 Ergonomics

Ergonomics
The SIG 551-A1 has many familiar controls and ergonomic features, however its setup is entirely unique from other rifles on the market.  Its magazine release is behind the mag in a similar manner to the AKM as is the reciprocating charging handle on the bolt group.  The grip is similar to an FAL with a safety reminiscent of an AR15, the folding stock has contours similar to a G3 (HK91) and the handguard has a taper similar to many traditional rifle stocks from WWII.


SIG Sauer 551-A1 Fit & Finish

While the outside of this rifle shows stamped receivers, polymer components and an overall design that suggests the internal simplicity of an AKM or FAL, the internal components are anything but simple.  The disassembly of this rifle is incredibly complex and requires partial disassembly of the bolt group while it’s still inside the rifle.  Due to the low sales numbers of this rifle as a result of Clinton’s AWB, there’s very little aftermarket support for this rifle.


Fit and Finish

How much is a SIG Sauer 551-A1 worth?

In 2024 a new or used SIG Sauer 551-A1 value varies depending on supply and demand. In the last 12 months there is great demand for a SIG Sauer 551-A1 and most rifles. The Price for a SIG Sauer 551-A1 has increased in cost by $0.00 in 2024 compared to 2023.

Estimated New and Used Values for a SIG Sauer 551-A1 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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