Photo by Ruger
Ruger SR-556 Standard 5.56 mm SC
In guns including firearms, caliber or calibre is the approximate internal diameter of the barrel in relation to the extension of the projectile used in it.
View list of calibers
View list of calibers
Caliber: 5.56 NATO (223 Rem)
Capacity: 30
MSRP: $1,995.00
Model #: SR-556SC
Product Link: http://www.gunzoo.com/gun/Ruger/SR-556-Standard-5-56-mm-SC
THE AR PLATFORM REDEFINED. The SR-556® offers Ruger's legendary rugged reliability, and comes factory standard with a host of accessories that today's shooters demand. Employing a patent-pending, chrome-plated, two-stage piston driven operating system that provides the user with a cleaner, cooler running, reliable firearm that is truly state-of-the-art.
The chrome-lined gas block and chrome-plated piston and regulator work together to provide a smooth power delivery stroke to the bolt carrier. The by-products of the gas system are vented out the bottom of the gas block, away from the bolt carrier, keeping the action clean and free from contaminants. The end result is significantly improved performance over gas driven rifles.
The chrome-lined gas block and chrome-plated piston and regulator work together to provide a smooth power delivery stroke to the bolt carrier. The by-products of the gas system are vented out the bottom of the gas block, away from the bolt carrier, keeping the action clean and free from contaminants. The end result is significantly improved performance over gas driven rifles.
In firearms terminology, an action is the physical mechanism that manipulates cartridges and/or seals the breech. The term is also used to describe the method in which cartridges are loaded, locked, and extracted from the mechanism. Actions are generally categorized by the type of mechanism used.
View list of action types
View list of action types
| Length: | 34.50 in. | Height: | 7.75 in. |
|---|---|---|---|
| Width: | 2.50 in. | Weight: | 8 lbs. 0.00 oz. |
| Loaded Weight(~): | Line of Sight: | ||
| Drop at Heel: | Drop At Comb: |
| Barrel Length: | 16.12 in. | Barrel Rifling: | |
|---|---|---|---|
| Length of Twist: | 9 in. | Barrel Type: |
| Rear Sights: | Folding BattleSights | Front Sights: | Folding BattleSights |
|---|
| Action Type: | Semi-Auto | Safety: | |
|---|---|---|---|
| Trigger Pull Weight: | Trigger Travel: | ||
| Length of Pull: | 13.5 in. |
| Finishes: | MaganesePhosphate | Frame Material: | |
|---|---|---|---|
| Stocks: | Collapsable |
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