Masterpiece Arms Gray Ops XL Side Weights (Steel)



  • Give the perfect balance point to your MPA BA Comp/Matrix/Matrix Pro Chassis when combined with the MPA Competition Side Rails
  • Added weight Reduces recoil and adds stability
  • Textured Top for Maximum Grip when driving your rifle


  • Machined from 1018 cold rolled steel
  • Black Nitride finish for superior corrosion and rust resistance
  • Includes 2 weights
  • Each weight has 2 built in flush cup locations (4 total per kit) for each sling and accessory attachment
  • Hardware to attach to side rails included

Weight / Dimensions:

  • BA/Hybrid: 1.3LBS per set of 2 / 5.25″ long x 0.88″ tall
  • Matrix/ESR: 1.4LBS per set of 2 / 6.16″ long x 0.88″ tall
  • Matrix PRO: 1.5LBS per set of 2 / 6.16″ long x 0.88″ tall


  • MPA Side rails required for use with BA Comp / Hybrid and the Matrix/ESR models.
  • No added parts required for Matrix Pro
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Additional information


BA Comp/Hybrid Chassis, Matrix/ESR Chassis, Matrix Pro