The Primary Weapons MK109 MOD2 upper in 300 Blackout features no forward assist, MLOK handguard with integrated Picatinny rail sections, PWS Triad compensator, 41V50 FNC LIFE HD barrel, long-stroke piston system, *adjustable gas block & Radian Raptor LT charging handle.
*PWS advises the use of supersonic 110 to 130 grain ammo on this platform. Running ammunition heavier than 130 grain can adversely affect cycling unless a suppressor is utilized.