Primary Weapons Systems – Pws Mk109 Mod 1-m Upper 300blk 9.75


Availability: Out of stock SKU: PWS18-M109UB0B Categories: ,


The MK1 MOD 1-M line features the PWS long stroke piston system. Internally, this line offers the tried and true system that PWS owners have grown to know and love. Featuring a free-float MLOK handguard, forward assist controls, and a more true to mil-spec design, the MK1 MOD 1-M line is a go-to for not only civilians, but also Law Enforcement. With the fully forged upper and lower receivers, the MK1 MOD 1-M is a no-nonsense tool for when you need a high value option that is relentless and unstoppable.

Features :

  • “9.75” 300BLK Barrel,
  • Barrel Twist Rate 1:8
  • Muzzle Velocity 2264 fps
  • PWS Triad 30 Muzzle Device
  • PWS Proprietary Piston Upper, T6 7075 Forged, Anodized
  • ,PWS M-Lok 6.9″ Handguard,
  • Radian Raptor Ambidextrous Charging Handle

Additional information

Weight 4.25 lbs
Dimensions 0.00 × 0.00 × 0.00 in

Primary, Systems, Weapons






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