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SIG Sauer 516

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Critic Rating

User Rating

45 Reviews

MSRP:

$1539.69

Used Price:

$1,539.69

Sale Price:

$1710.77

SIG Sauer 516 Gun Stats

SIG Sauer 516

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The SIG Sauer SIG516 is a semi-automatic rifle manufactured by SIG Sauer. It is an AR-15 style rifle chambered in 5.56×45mm NATO.[1] Introduced in 2010, the SIG516 was discontinued as of 2019. A variant chambered in 7.62x51mm NATO, the SIG716, remains in production. The SIG516 is a semi-automatic multi-caliber rifle. It fires from a closed bolt, and has a short-stroke push rod piston system. The gas piston pushes the bolt carrier rearward, where it is returned to the forward and locked position by a spring. This process loads the next cartridge. The 516 has a four position gas regulator, allowing the user to choose the amount of gas directed to the piston.

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SIG Sauer 516 Specs

1 Brand

SIG Sauer

2 Category

Rifles

Technical Data

Caliber

.223 Remington (5.56x45mm NATO)

Length

35.7"

Action

Semi-Automatic

Capacity

30+1

Finish

Black

Gun Type

Rifle

Sights

None (Optics Ready)

Barrel Length

16"

SIG Sauer 516 Features

The SIG Sauer 516 is an AR15 pattern semi-automatic rifle that retains the multi-lug rotating bolt action but employs a short-stroke gas piston instead of using the typical internal-piston operation style.  This reduces fouling inside the bolt carrier group as well as reduce the amount of heat introduced into the system at the expense of a slight decrease in accuracy and a small bump in weight.  This rifle has a 16.5 inch barrel paired with an adjustable gas block so you can tune the gas pressure in case you run the rifle suppressed.

SIG Sauer 516 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 516 Capacity

The SIG 516 is chambered in 5.56x45mmNATO (.223 Remington) and feeds from all AR15 pattern magazines.  This gives the rifle a standard capacity of 30 rounds, however the shorter 5, 10 and 20 round magazines as well as the larger 40, 60 and 100 round magazines will work.  This rifle was built with a billet lower and the magazine well’s flare isn’t as defined as forged lowers.
The SIG 516 has the same overall length as any other off-the-shelf AR15 with a 16 inch barrel and typically has an unloaded weight of 7.5 pounds.  Once an optic and front grip are added, this rifle can easily exceed 9 pounds and while that’s heavier than most would prefer, this added weight does reduce the felt recoil which allows for a faster follow-up shot.  Otherwise, the rifle has the same overall mobility as a standard AR15.


SIG Sauer 516 Mobility

Mobility

SIG Sauer 516 Ergonomics

Ergonomics
The SIG 516 has a typical AR15 control layout but with multiple improvements to the fire controls.  The magazine release can be engaged from either side, the bolt catch includes a manual hold-open extension, the pistol grip has improved contours over a standard A2 grip, and the stock has a SOPMOD style geometry.  The rifle includes a free-floating 7 inch quad rail for a handguard, and a hand stop or front grip is recommended to avoid accidentally touching the gas block which can get very hot.


SIG Sauer 516 Fit & Finish

The SIG 516 has been built on both forged and billet receiver sets and the difference between the two is minimal.  Where this rifle stands out, aside from its improved gas system, is in its surface finishes of the contacting surfaces.  The inside of the upper receiver is honed both before and after anodizing for a much smoother finish than budget-ARs, the front face of the upper receiver is trued to improve accuracy through added barrel contact, and the bolt carrier has a much better surface finish than what MIL-SPEC requires.  This offers a much smoother-shooting rifle.


Fit and Finish

How much is a SIG Sauer 516 worth?

In 2024 a new or used SIG Sauer 516 value varies depending on supply and demand. In the last 12 months there is great demand for a SIG Sauer 516 and most rifles. The Price for a SIG Sauer 516 has increased in cost by $0.00 in 2024 compared to 2023.

Estimated New and Used Values for a SIG Sauer 516 Values are based on a basic model with no options or colors.

Condition Trade-In Private Party Dealer
New In box $1,265.26 $1,654.58 $1,946.56
Excellent $1,167.94 $1,557.25 $1,751.90
Very Good $1,070.61 $1,557.25 $1,751.90
Good $973.28 $1,459.92 $1,654.58
Fair $681.30 $1,265.26 $1,557.25
Poor $486.64 $973.28 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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