AR-15 Talk
Well It happened.
http://www.ruger.com/products/sr556/specSheets/5909.html
http://www.ruger.com/products/sr556/models.html
Still same old SAMMI and 1 in 10 twist with 6 grooves...Don't shoot tactical loads or hot hand loads in this one people... Other wise its a start...and is capable of a...