RUGER SR556UC, #90358 5.56, UPPER ONLY, GAS PISTON
Qty
Out of stock
| Product ID: |
511809 |
| UPC: |
736676903580 |
| MFG ID: |
90358 |
$1,154.99
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This SR-556 upper offers Ruger's legendary rugged reliability. The SR556 employs a patent-pending, chrome-plated, two-stage piston driven operating system that provides the user with a cleaner, cooler running,and more reliable firearm that is truly state-of-the-art.
The chrome-lined gas block, chrome-plated piston, and chrome plated 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-impingement style rifles.