Brownells 75th Anniversary - A Shooting Heritage

The PWS MK2 MOD 1-M .308 Winchester Upper Receivers feature the PWS long stroke piston system originally designed for the AR-15 platform. What makes a short gun run, makes a long gun accurate- that being said, the MK2 is among the most reliable and accurate in its category. The MK2 line features a free float MLOK handguard with fully forged upper receivers. Lightening cuts and an eliminated forward assist make the MK2 MOD 1-M line a lightweight yet solid feeling firearm.

The MK216 MOD 1-M is ideal for shooters looking to suppress their .308. The FSC30 Compensator ensures muzzle control and stability with reduced felt recoil. The MK216 MOD 1-M has a 16.1” length barrel.

With a 20” barrel, the longest barrel available through PWS, the MK220 MOD 1-M offers shooters a long range gun with the convenience of a semi-auto platform. Coming standard with a PRC 30 compensator on the end, the MK220 MOD 1-M is the ideal upper receiver for quick follow up shots at long distances.

  • M-LOK Handguard
  • 1:10 barrel twist rate
  • Includes Radian Raptor Charging Handle
  • 3-setting adjustable gas system

Accuracy, smooth operation and reliability make the MK2 MOD 1-M .308 Upper Receiver line a necessity for those looking to expand their long-stroke piston system firearm collections.

Big Book Catalog, Issue:73, Page:006


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Cartridge: 308 Winchester

Length: 16.1"

Twist: 1-10

Discontinued by the Factory

Product has been discontinued and no longer available.