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rosco manufacturing

  1. abn_surfer

    SOLD Rosco 13.9 Limited SPR Barrel w/ Superlative Arms Adjustable Gas Block

    **Pictures on the way** This is a great barrel for a General-Purpose Rifle (GPR) build. The 13.9” length allows for a multitude of muzzle options for pin & weld for a handy rifle that can strech its legs to distance. The specifics of the barrel are listed below, however one of the great features...
  2. USK308

    Interesting variance in gas port size

    Semi long post, but good info to share in my opinion) So I recently finished building my 300Blackout SBR (10.5" Faxon Gunner-profile barrel with pistol length gas). First time at the range to dial in the adjustable gas block (Aero Precision), using 100gr A-Max Hornady (had a few boxes I...
    • USK308
    • Thread
    • 10.5" barrel 300 aac 300 blackout adjustable gas block aero precision rosco manufacturing sbr superlative arms
    • Replies: 18
    • Forum: Semi-Automatic Rifles
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