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Extreme negligence when put together. - Rock River Arms Mountain Pistol 10.5in Upper

by Chase Langley, Verified Owner from ME, United States Written on April 10, 2026
Review for Rock River Arms Mountain Pistol 10.5in Upper
Rock River Arms Mountain Pistol 10.5in Upper
Rock River Arms Mountain Pistol 10.5in Upper
$570.00 $529.99 Save $40.01
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Chase Langley's Review of Rock River Arms Mountain Pistol 10.5in Upper

I think something akin to a monkey assembled this upper. Out of spec gas block. Forward rail crooked. No torque wrenched used as every single screw was tightened past comprehension.
Pros:
  • Looks cool
Cons:
  • Piece of junk.
Best Used for:
  • Showing people was a short stroke looks like.
Would Recommend: No
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