Ask the Community
Get answers from fellow firearm enthusiasts and share your knowledge with the community.
Back to Questions
Joseph L. asked 8 years ago:
Usually in military terms Sierra is "S". It is a heavy barrel only out to the gas block then it reduces to .750". This model is California compliant with the bullet button and has the forward assist.
Mark G.
8 years ago
Sierra is "S". It is a heavy barrel only out to the gas block then it reduces to .750". This model is California compliant with the bullet button and has the forward assist.
Steve P.
8 years ago
Usually in military terms Sierra is "S". It is a heavy barrel only out to the gas block then it reduces to .750". This model is California compliant with the bullet button and has the forward assist.
Randy I.
8 years ago
