PMA 7.5" 5.56 NATO Barrel 1-7 Twist Pistol Length
MFR#: PMA75556N17
Length - 7.5"
Caliber - 5.56 NATO
Twist - 1-7 Twist
Muzzle Thread - 1/2x28
Weight - 14.4 oz
Gas - Pistol Length
Port Size - .064
Finish - Black Nitride
4150 CMV
Nickel Boron Coated Barrel Extension
NOT CHROME-LINED