Details

The SIG SG550 owes a lot to it’s predecessor- the SIG SG510. Not in terms of any design or mechanical legacy, but sheer necessity to break from it’s mold.
The 510 was a fine piece of design, but that came at significant cost- it’s the most expensive Standard Issue Rifle fielded, and with it came a lot of export-minded drawbacks: it was not easy to maintain, it was heavy, and it was built for full-power rifle rounds.

In the 1978, both major Swiss Arms companies (SIG and W+F Bern), set about building it’s replacer. SIG’s pattern – the SG541 – won out in 1981 and with minor alterations started production in 1983 as the SG550.
By previous standards, the 550 is a heavily economised design. It sheds many intricacies found in previous rifles, but the two things that made it such a powerhouse:
The first, a stamped steel receiver (capitalising on the techniques learned on the P220, cutting down production times significantly).
The Second was a long-stroke gas piston whole form copied from the Soviet AK ( down to the locking recesses and bolt design).
The Swiss Army formally adopted rifle, and a shortened carbine, as the STG90. The gun fires 5.6mmx45 GP90 (5.56mm NATO) rounds in semi, full-auto or 3 shot bursts, feeding from 10,20,30 round translucent box magazines (Beta systems do make a 100 round C-Mag drum, but they’re rare and unreliable).
It’s capable of firing rifle grenades, comes standard with a bipod, and has diopter sights with inbuilt night setting. Over the last 25 years it has seen numerous additions to the platform, starting with the 550-1 Sniper, being joined by long barrel carbine iterations, the 552 “Commando” and 553 SOW, 553R (a sub-compact version chambered in 7.62×39), and most recently, a .300Blackout chambering soon to hit the European markets.

The NIArms SG550 is effectively comprehensive. Of all the variations of the primary 550 family, this covers all but 2 of the models, (and the SIG-Sauer SG556 family branch,) on the market, spanning the entire service life of the system.

Pack Contents

24 Rifle variations, with matching and correct textures
Native scope mount options
Scope-only NAR rail options
Full quad/tactical NAR variants
Grenade Launcher module variants (GL5040 and M203-2003, plus NICO Quadrant Sight)
Short AND Long Barrel variants

Media

SG550 Release

Arma3

Prerequisites

NIArms- Core

Community Base Addons for Arma 3

Changelog

V1.2

Re-integrated closure noises to gunshots

V1.1

Implemented GripsSwitch functionality – All correct weapons accept and function with respective Gripswitch Functionality
Implemented ACE Advanced Ballistics ACE_railHeightAboveBore on weapons
Added Rail Covers
CBA Scripted Optics implemented on 2D Optic Attachments:
- Zeiss Diavari-Z (hlc_optic_DiavariZ_5501)
- Kahles ZF95 (hlc_optic_ZF95)
- FN STANAG 4x (hlc_optic_FNSTANAG4X2d_550)
- Kern AARAU 3.5x (hlc_optic_Kern2d_550)
Implemented ACE Advanced Ballistics HeightAboveRail values on all optics.
Implemented New Gunshot soundshaders (Credit:LordJarhead)
all ContextProne changed to use NIA_handsWeapon_context_Toadie (reduces Context prone clipping)
Unified and Standardised all mass values (Weight divided by the mass coef equals ACE-approved kilograms)
IconOverlays in the Gear menu Disabled on all weapons.
Changed the Supply Crate to a labelled NIArms Branded Variant
AI Firemodes cleaned up, more functional, less lines.
RVMAT Reflectivity method improved – now uses map-defined EnvMap.

V1.05

Implemented XML Stringtables
Japanese Language String Translation (Credit: ClassicArma)
Implemented MagzineWells, Compatible with JAM
Implemented Magazine Proxies
Added Rotex 3-Prong as Muzzle attachment for other weapons.

V1

Initial Release

SG550 Rifles