Wilson Combat Bolt Carrier Assembly 5.56 NATO Black Nitride TR-BCA-SBN-556. The Wilson Combat Bolt Carrier Assembly comes in several different finishes depending on your shooting needs: nickel boron black nitride and parkerized. Nickel boron offers...
Wilson Combat Bolt Carrier Assembly 5.56 NATO Black Nitride TR-BCA-SBN-556. The Wilson Combat Bolt Carrier Assembly comes in several different finishes depending on your shooting needs: nickel boron black nitride and parkerized. Nickel boron offers...