FN America M249S Semi-Automatic Rifle 5.56mm NATO 18.5" Barrel Fixed Polymer Stock Matte Black Finish
The FN M249S Standard and Para, semi-automatic versions of the M249 SAW light machine gun, originally developed by FN Herstal as the FN MINIMI® and adopted by the U.S. Military in 1988. Features the signature FN cold hammerforged, chrome-lined barrel and operates from a closed bolt position. Chambered in 5.56x45mm NATO, the rifle will accept both magazine and linked belt ammunition.
Receiver
Formed steel frame with claw extractor design
Fixed, pivoting ejector, plus side ejection of cases
Top cover integrated MIL-STD-1913 mounting rail for sighting
Highly ergonomic polymer buttstock assembly with hydraulic recoil buffer system and non-slip buttplate
Operating Controls
Crossbolt safety
Curved trigger for improved finger position and control
Redesigned trigger mechanism for semi-auto fire
Non-reciprocating charging handle
Feed System
Standard disintegrating link belt-fed
Under-mounted polymer ammunition container helps keep ammunition cleaner for reduced wear and added reliability
Type: Rifle: Semi Automatic
Model Series: M249S
Caliber/Gauge: 5.56 NATO
Barrel Length: 18.5 in.
Minimum/Overall Length: 40.75 in.
Safety: 2 Position
Frame Finish: Matte Black
Front Sight: Adjustable Post
Rear Sight: Adjustable Peep
Grips: Pistol Grip
Weight: 29.2 lbs.
Firearm Stock: Fixed Polymer
Accessories: BIPOD
Features: Accepts Mag & Linked Ammo Belt | Ground Shipping Only | Quick Change Barrel, Bipod
Extended Length: 40.75
Finish: Black
Magazine Count: 1
Operating System: Gas Piston
Firing System: Internal Hammer
Frame Material: Aluminum
Scope Base: Picatinny Rail
Trigger Pull Average: 8.00
Barrel Configuration: Single
Barrel Description: Hammer-forged, Chrome-lined
Muzzle: Flash Hider
Threaded Barrel: Yes
Rifled Barrel: Yes
Caliber Dictionary
The Below Information Has Been Provided From Our Gun Caliber Dictionary And Is Meant For Informational Purposes Only. It Is Not Intended to Describe The Unique Specifications For This Ammunition.
The 5.56X45mm NATO cartridge was designed by James Sullivan, a member of Eugene Stoner's engineering team that developed both the M16 rifle and its original cartridge. The 5.56X45mm NATO was adopted by the U.S. military in 1964 and by NATO in 1980. With bullet diameter of .224-inch, the original M193 military cartridge used a 55-grain bullet at 3250 fps; the current M855A1 cartridge, developed by FN, uses a 62.5-grain bullet at 3020 fps, offering greater range and better penetration. The civilian version of the 5.56X45mm is 223 Remington; the cartridges are dimensionally identical but military chamber dimensions and specifications for military brass are different. It is considered safe to use 223 Remington ammo in a 5.56X45MM NATO chamber, but not a good idea to use 5.56X45mm ammo in a rifle specifically chambered for the 223 Remington. Although the stopping power of .22-caliber bullets remains controversial the 5.56X45mm has served well in now multiple generations of M16 rifles. — Craig Boddington
