Masterpiece Arms Gray Ops M-lok External Chassis Weights

MPA is proud to partner with Gray Ops CNC to offer their M-lok External Weights.

These are compatible with either the MPA ESR or MPA Matrix Chassis. Not Matrix Pro

Not compatible with Competition Side Rails installed.

Specs and Details:

• Black Nitride finish
• Integral Flush cup
• Shaped to be support hand friendly during push/pull/press positional shooting
• Compatible with MPA internal weight kits on Matrix