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Competition Side Rails, designed for the BA Comp chassis, provide enhanced stability when shooting “positional” in PRS or NRL Style competitions.


Adds approximately 75% more width to the bottom of the fore-end, making the rifle more stable when shooting off positional bags.  The radius section on the bottom of the rails provides a more comfortable grip of the fore-end when moving and changing positions.


The side rails are compatible with the MPA internal weights and Gray Ops CNC Side Rail Weights, available for purchase separately.


System includes:

  • Left and right side rail
  • 8 “t-nuts”
  • 8 fasteners for attaching the rails to the nuts
  • 8 fasteners for attaching to the MPA Internal Weight System.


Compatible only with the BA and BA Comp chassis

Cerakoted black. Other cerakote options, available for an upcharge, include: FDE, Mil Spec OD Green, Gunmetal, Tungsten, Midnight Bronze, NRA Blue, and USMC Red. 


See below for compatibility with various arca clamp products:

  • MPA RAT Clamp & RAT Accessories – Compatible
  • Area 419 Knob type Arcalock Clamp – Compatible
  • GrayOps Mini Plate Pro – Compatible
  • GrayOps Mag Cut Mini Plate – Not Compatible
  • GrayOps Amp Elite Multi Plate – Compatible
  • GrayOps Arca Rail Clamp – Throw Lever Style – Compatible
  • Area 419 Harris Bipod Arca Clamp Kit – Compatible
  • Really Right Stuff BTC-Pro Clamp – Not Compatible
  • Really Right Stuff EVO-CA Throw Lever Clamp – Compatible
  • Really Right Stuff SC-LR Throw Lever Clamp – Compatible
  • Really Right Stuff HC-Pro Clamp for Harris Bipod – Not Compatible
  • Cyke Pod Bipods – Compatible
  • Cruxord Tripos – Compatible
  • Leofoto Tripods with Throw Lever Clamp – Compatible
  • RRS Tripos with Throw Lever Clamp – Compatible


To summarize, most, if not all, throw lever clamps will work with our Comp Side Rails. Most Knob/Thumb Wheel Type Clamps will not function properly.

MPA Competition Side Rails - BA Comp

Ships in 1-2 weeks