Ballistic's Modern Series SPR Rifle Length AR 15 barrel is machined from 4150 chrome moly vanadium steel with a QPQ corrosion resistant finish and QPQ coated M4 feed ramp extension.
This 18" model is chambered in 5.56 NATO, has a SPR rifle length gas system and 1/2x28 tpi threads. It features a longer .750" profile dimension necessary for proper installation of the OPS Inc 12th model collar and suppressor.
|Caliber or Gauge||223 Remington/5.56 NATO|
|Barrel Type||4150 Chrome Moly Vanadium|
|Barrel Features||1/2"-28 tpi|
Determined at checkout.